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 /* This tries to turn on large file support on some Unix platforms,
83 * making off_t be a 64-bit type, and so on.
85 * http://www.rs6000.ibm.com/doc_link/en_US/a_doc_lib/aixprggd/genprogc/prg_lrg_files.htm
87 #define _LARGE_FILES 1
89 #include <sys/types.h>
97 #ifdef HAVE_SYS_PARAM_H
98 #include <sys/param.h>
105 #ifdef HAVE_SYS_SOCKET_H
106 #include <sys/socket.h>
117 #ifdef TIME_WITH_SYS_TIME
118 #include <sys/time.h>
121 #ifdef HAVE_SYS_TIME_H
122 #include <sys/time.h>
131 #ifdef HAVE_SYS_FCNTL_H
132 #include <sys/fcntl.h>
136 #include <sys/stat.h>
138 #ifdef HAVE_SYS_IOCTL_H
139 #include <sys/ioctl.h>
142 #ifdef HAVE_SYS_FILIO_H
143 #include <sys/filio.h>
147 #ifdef HAVE_SYS_WAIT_H
148 #include <sys/wait.h>
162 #ifdef HAVE_SYS_SELECT_H
163 #include <sys/select.h>
166 #ifdef HAVE_SYS_MODE_H
167 /* apparently AIX needs this for S_ISLNK */
169 #include <sys/mode.h>
176 #include "lib/fnmatch.h"
183 /* these are needed for the uid/gid mapping code */
188 #include <netinet/in.h>
189 #include <arpa/inet.h>
192 #include <sys/file.h>
197 # define dirent direct
199 # include <sys/ndir.h>
202 # include <sys/dir.h>
217 #define uchar unsigned char
220 #if HAVE_UNSIGNED_CHAR
221 #define schar signed char
227 #if (SIZEOF_INT == 4)
229 #elif (SIZEOF_LONG == 4)
231 #elif (SIZEOF_SHORT == 4)
234 /* I hope this works */
241 #define uint32 unsigned int32
245 #define OFF_T off64_t
246 #define STRUCT_STAT struct stat64
249 #define STRUCT_STAT struct stat
253 #define int64 off64_t
254 #elif (SIZEOF_LONG == 8)
256 #elif (SIZEOF_INT == 8)
259 #define int64 long long
272 #define MIN(a,b) ((a)<(b)?(a):(b))
276 #define MAX(a,b) ((a)>(b)?(a):(b))
279 #ifndef MAXHOSTNAMELEN
280 #define MAXHOSTNAMELEN 256
283 /* the length of the md4 checksum */
284 #define MD4_SUM_LENGTH 16
285 #define SUM_LENGTH 16
288 #define MAXPATHLEN 1024
292 #define INADDR_NONE 0xffffffff
313 #define ARENA_SIZE (32 * 1024)
319 struct string_area *next;
325 struct file_struct **files;
326 struct string_area *string_area;
330 OFF_T offset; /* offset in file of this chunk */
331 int len; /* length of chunk of file */
332 int i; /* index of this chunk */
333 uint32 sum1; /* simple checksum */
334 char sum2[SUM_LENGTH]; /* checksum */
338 OFF_T flength; /* total file length */
339 int count; /* how many chunks */
340 int remainder; /* flength % block_length */
341 int n; /* block_length */
342 struct sum_buf *sums; /* points to info for each chunk */
348 OFF_T file_size, p_offset, p_fd_offset;
351 struct exclude_struct {
362 int64 total_transferred_size;
369 int num_transferred_files;
373 /* we need this function because of the silly way in which duplicate
374 entries are handled in the file lists - we can't change this
375 without breaking existing versions */
376 static inline int flist_up(struct file_list *flist, int i)
378 while (!flist->files[i]->basename) i++;
382 #include "byteorder.h"
385 #include "lib/mdfour.h"
388 extern char *sys_errlist[];
389 #define strerror(i) sys_errlist[i]
393 # define strchr index
394 # define strrchr rindex
397 #ifndef HAVE_ERRNO_DECL
401 #define SUPPORT_LINKS HAVE_READLINK
402 #define SUPPORT_HARD_LINKS HAVE_LINK
408 #define SIGNAL_CAST (RETSIGTYPE (*)())
411 #define EWOULDBLOCK EAGAIN
415 #define STDIN_FILENO 0
418 #ifndef STDOUT_FILENO
419 #define STDOUT_FILENO 1
422 #ifndef STDERR_FILENO
423 #define STDERR_FILENO 2
431 #define _S_IFMT 0170000
435 #define _S_IFLNK 0120000
439 #define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK))
443 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
447 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
452 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
454 #define S_ISSOCK(mode) (0)
460 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
462 #define S_ISFIFO(mode) (0)
467 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
471 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
474 /* work out what fcntl flag to use for non-blocking */
476 # define NONBLOCK_FLAG O_NONBLOCK
478 # define NONBLOCK_FLAG O_NDELAY
480 # define NONBLOCK_FLAG FNDELAY
484 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode) || S_ISSOCK(mode) || S_ISFIFO(mode))
487 #define ACCESSPERMS 0777
489 /* Initial mask on permissions given to temporary files. Mask off setuid
490 bits and group access because of potential race-condition security
491 holes, and mask other access because mode 707 is bizarre */
492 #define INITACCESSPERMS 0700
494 /* handler for null strings in printf format */
495 #define NS(s) ((s)?(s):"<NULL>")
497 /* use magic gcc attributes to catch format errors */
498 void rprintf(enum logcode , const char *, ...)
500 __attribute__ ((format (printf, 2, 3)))
504 /* This is just like rprintf, but it also tries to print some
505 * representation of the error code. Normally errcode = errno. */
506 void rsyserr(enum logcode, int, const char *, ...)
508 __attribute__ ((format (printf, 3, 4)))
512 #ifdef REPLACE_INET_NTOA
513 #define inet_ntoa rep_inet_ntoa
518 size_t strlcpy(char *d, const char *s, size_t bufsize);
522 size_t strlcat(char *d, const char *s, size_t bufsize);
526 #define WEXITSTATUS(stat) ((int)(((stat)>>8)&0xFF))
529 #define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__)