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
259 # define INO_T uint32
263 # define INO_T unsigned
267 #define MIN(a,b) ((a)<(b)?(a):(b))
271 #define MAX(a,b) ((a)>(b)?(a):(b))
274 #ifndef MAXHOSTNAMELEN
275 #define MAXHOSTNAMELEN 256
278 /* the length of the md4 checksum */
279 #define MD4_SUM_LENGTH 16
280 #define SUM_LENGTH 16
283 #define MAXPATHLEN 1024
287 #define INADDR_NONE 0xffffffff
308 #define ARENA_SIZE (32 * 1024)
314 struct string_area *next;
320 struct file_struct **files;
321 struct string_area *string_area;
325 OFF_T offset; /* offset in file of this chunk */
326 int len; /* length of chunk of file */
327 int i; /* index of this chunk */
328 uint32 sum1; /* simple checksum */
329 char sum2[SUM_LENGTH]; /* checksum */
333 OFF_T flength; /* total file length */
334 int count; /* how many chunks */
335 int remainder; /* flength % block_length */
336 int n; /* block_length */
337 struct sum_buf *sums; /* points to info for each chunk */
343 OFF_T file_size, p_offset, p_fd_offset;
346 struct exclude_struct {
357 int64 total_transferred_size;
364 int num_transferred_files;
368 /* we need this function because of the silly way in which duplicate
369 entries are handled in the file lists - we can't change this
370 without breaking existing versions */
371 static inline int flist_up(struct file_list *flist, int i)
373 while (!flist->files[i]->basename) i++;
377 #include "byteorder.h"
380 #include "lib/mdfour.h"
383 extern char *sys_errlist[];
384 #define strerror(i) sys_errlist[i]
388 # define strchr index
389 # define strrchr rindex
392 #ifndef HAVE_ERRNO_DECL
396 #define SUPPORT_LINKS HAVE_READLINK
397 #define SUPPORT_HARD_LINKS HAVE_LINK
403 #define SIGNAL_CAST (RETSIGTYPE (*)())
406 #define EWOULDBLOCK EAGAIN
410 #define STDIN_FILENO 0
413 #ifndef STDOUT_FILENO
414 #define STDOUT_FILENO 1
417 #ifndef STDERR_FILENO
418 #define STDERR_FILENO 2
426 #define _S_IFMT 0170000
430 #define _S_IFLNK 0120000
434 #define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK))
438 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
442 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
447 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
449 #define S_ISSOCK(mode) (0)
455 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
457 #define S_ISFIFO(mode) (0)
462 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
466 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
469 /* work out what fcntl flag to use for non-blocking */
471 # define NONBLOCK_FLAG O_NONBLOCK
473 # define NONBLOCK_FLAG O_NDELAY
475 # define NONBLOCK_FLAG FNDELAY
479 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode) || S_ISSOCK(mode) || S_ISFIFO(mode))
482 #define ACCESSPERMS 0777
484 /* Initial mask on permissions given to temporary files. Mask off setuid
485 bits and group access because of potential race-condition security
486 holes, and mask other access because mode 707 is bizarre */
487 #define INITACCESSPERMS 0700
489 /* handler for null strings in printf format */
490 #define NS(s) ((s)?(s):"<NULL>")
492 /* use magic gcc attributes to catch format errors */
493 void rprintf(enum logcode , const char *, ...)
495 __attribute__ ((format (printf, 2, 3)))
499 /* This is just like rprintf, but it also tries to print some
500 * representation of the error code. Normally errcode = errno. */
501 void rsyserr(enum logcode, int, const char *, ...)
503 __attribute__ ((format (printf, 3, 4)))
507 #ifdef REPLACE_INET_NTOA
508 #define inet_ntoa rep_inet_ntoa
513 size_t strlcpy(char *d, const char *s, size_t bufsize);
517 size_t strlcat(char *d, const char *s, size_t bufsize);
521 #define WEXITSTATUS(stat) ((int)(((stat)>>8)&0xFF))
524 #define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__)