2 * Copyright (C) 1996, 2000 Andrew Tridgell
3 * Copyright (C) 1996 Paul Mackerras
4 * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
5 * Copyright (C) 2003-2007 Wayne Davison
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, visit the http://fsf.org website.
24 #define BLOCK_SIZE 700
25 #define RSYNC_RSH_ENV "RSYNC_RSH"
26 #define RSYNC_RSH_IO_ENV "RSYNC_RSH_IO"
28 #define RSYNC_NAME "rsync"
29 /* RSYNCD_SYSCONF is now set in config.h */
30 #define RSYNCD_USERCONF "rsyncd.conf"
32 #define DEFAULT_LOCK_FILE "/var/run/rsyncd.lock"
33 #define URL_PREFIX "rsync://"
35 #define BACKUP_SUFFIX "~"
37 /* a non-zero CHAR_OFFSET makes the rolling sum stronger, but is
38 incompatible with older versions :-( */
41 /* These flags are only used during the flist transfer. */
43 #define XMIT_TOP_DIR (1<<0)
44 #define XMIT_SAME_MODE (1<<1)
45 #define XMIT_SAME_RDEV_pre28 (1<<2) /* protocols 20 - 27 */
46 #define XMIT_EXTENDED_FLAGS (1<<2) /* protocols 28 - NOW */
47 #define XMIT_SAME_UID (1<<3)
48 #define XMIT_SAME_GID (1<<4)
49 #define XMIT_SAME_NAME (1<<5)
50 #define XMIT_LONG_NAME (1<<6)
51 #define XMIT_SAME_TIME (1<<7)
52 #define XMIT_SAME_RDEV_MAJOR (1<<8) /* protocols 28 - NOW */
53 #define XMIT_HLINKED (1<<9) /* protocols 28 - NOW */
54 #define XMIT_SAME_DEV_pre30 (1<<10) /* protocols 28 - 29 */
55 #define XMIT_USER_NAME_FOLLOWS (1<<10) /* protocols 30 - NOW */
56 #define XMIT_RDEV_MINOR_8_pre30 (1<<11) /* protocols 28 - 29 */
57 #define XMIT_GROUP_NAME_FOLLOWS (1<<11) /* protocols 30 - NOW */
58 #define XMIT_HLINK_FIRST (1<<12) /* protocols 30 - NOW */
60 /* These flags are used in the live flist data. */
62 #define FLAG_TOP_DIR (1<<0) /* sender/receiver/generator */
63 #define FLAG_FILE_SENT (1<<1) /* sender/receiver/generator */
64 #define FLAG_DIR_CHANGED (1<<1) /* generator */
65 #define FLAG_XFER_DIR (1<<2) /* sender/receiver/generator */
66 #define FLAG_MOUNT_DIR (1<<3) /* sender/generator */
67 #define FLAG_DUPLICATE (1<<4) /* sender */
68 #define FLAG_MISSING_DIR (1<<4) /* generator */
69 #define FLAG_HLINKED (1<<5) /* receiver/generator */
70 #define FLAG_HLINK_FIRST (1<<6) /* receiver/generator */
71 #define FLAG_HLINK_LAST (1<<7) /* receiver/generator */
72 #define FLAG_HLINK_DONE (1<<8) /* receiver/generator */
73 #define FLAG_LENGTH64 (1<<9) /* sender/receiver/generator */
74 #define FLAG_SKIP_GROUP (1<<10) /* receiver/generator */
76 /* These flags are passed to functions but not stored. */
78 #define FLAG_DIVERT_DIRS (1<<16)/* sender */
80 #define BITS_SET(val,bits) (((val) & (bits)) == (bits))
81 #define BITS_SETnUNSET(val,onbits,offbits) (((val) & ((onbits)|(offbits))) == (onbits))
82 #define BITS_EQUAL(b1,b2,mask) (((unsigned)(b1) & (unsigned)(mask)) \
83 == ((unsigned)(b2) & (unsigned)(mask)))
85 /* update this if you make incompatible changes */
86 #define PROTOCOL_VERSION 30
88 /* This is used when working on a new protocol version in CVS, and should
89 * be a new non-zero value for each CVS change that affects the protocol.
90 * It must ALWAYS be 0 when the protocol goes final! */
91 #define SUBPROTOCOL_VERSION 4
93 /* We refuse to interoperate with versions that are not in this range.
94 * Note that we assume we'll work with later versions: the onus is on
95 * people writing them to make sure that they don't send us anything
96 * we won't understand.
98 * Interoperation with old but supported protocol versions
99 * should cause a warning to be printed. At a future date
100 * the old protocol will become the minimum and
101 * compatibility code removed.
103 * There are two possible explanations for the limit at
104 * MAX_PROTOCOL_VERSION: either to allow new major-rev versions that
105 * do not interoperate with us, and (more likely) so that we can
106 * detect an attempt to connect rsync to a non-rsync server, which is
107 * unlikely to begin by sending a byte between MIN_PROTOCL_VERSION and
108 * MAX_PROTOCOL_VERSION. */
110 #define MIN_PROTOCOL_VERSION 20
111 #define OLD_PROTOCOL_VERSION 25
112 #define MAX_PROTOCOL_VERSION 40
114 #define FILECNT_LOOKAHEAD 1000
116 #define RSYNC_PORT 873
118 #define SPARSE_WRITE_SIZE (1024)
119 #define WRITE_SIZE (32*1024)
120 #define CHUNK_SIZE (32*1024)
121 #define MAX_MAP_SIZE (256*1024)
122 #define IO_BUFFER_SIZE (4092)
123 #define MAX_BLOCK_SIZE ((int32)1 << 29)
125 #define IOERR_GENERAL (1<<0) /* For backward compatibility, this must == 1 */
126 #define IOERR_VANISHED (1<<1)
127 #define IOERR_DEL_LIMIT (1<<2)
129 #define MAX_ARGS 1000
130 #define MAX_BASIS_DIRS 20
131 #define MAX_SERVER_ARGS (MAX_BASIS_DIRS*2 + 100)
136 #define SERVER_FILTERS 1
137 #define ALL_FILTERS 2
139 #define XFLG_FATAL_ERRORS (1<<0)
140 #define XFLG_OLD_PREFIXES (1<<1)
141 #define XFLG_ANCHORED2ABS (1<<2)
142 #define XFLG_ABS_IF_SLASH (1<<3)
144 #define ATTRS_REPORT (1<<0)
145 #define ATTRS_SKIP_MTIME (1<<1)
148 #define NORMAL_FLUSH 0
150 #define PDIR_CREATE 1
151 #define PDIR_DELETE 0
153 /* Note: 0x00 - 0x7F are used for basis_dir[] indexes! */
154 #define FNAMECMP_BASIS_DIR_LOW 0x00 /* Must remain 0! */
155 #define FNAMECMP_BASIS_DIR_HIGH 0x7F
156 #define FNAMECMP_FNAME 0x80
157 #define FNAMECMP_PARTIAL_DIR 0x81
158 #define FNAMECMP_BACKUP 0x82
159 #define FNAMECMP_FUZZY 0x83
161 /* For use by the itemize_changes code */
162 #define ITEM_REPORT_ATIME (1<<0)
163 #define ITEM_REPORT_CHECKSUM (1<<1)
164 #define ITEM_REPORT_SIZE (1<<2)
165 #define ITEM_REPORT_TIME (1<<3)
166 #define ITEM_REPORT_PERMS (1<<4)
167 #define ITEM_REPORT_OWNER (1<<5)
168 #define ITEM_REPORT_GROUP (1<<6)
169 #define ITEM_REPORT_ACL (1<<7)
170 #define ITEM_REPORT_XATTR (1<<8)
171 #define ITEM_BASIS_TYPE_FOLLOWS (1<<11)
172 #define ITEM_XNAME_FOLLOWS (1<<12)
173 #define ITEM_IS_NEW (1<<13)
174 #define ITEM_LOCAL_CHANGE (1<<14)
175 #define ITEM_TRANSFER (1<<15)
176 /* These are outside the range of the transmitted flags. */
177 #define ITEM_MISSING_DATA (1<<16) /* used by log_formatted() */
178 #define ITEM_DELETED (1<<17) /* used by log_formatted() */
179 #define ITEM_MATCHED (1<<18) /* used by itemize() */
181 #define SIGNIFICANT_ITEM_FLAGS (~(\
182 ITEM_BASIS_TYPE_FOLLOWS | ITEM_XNAME_FOLLOWS | ITEM_LOCAL_CHANGE))
185 /* Log-message categories. Only FERROR and FINFO get sent over the socket,
186 * but FLOG and FSOCKERR can be sent over the receiver -> generator pipe.
187 * FLOG only goes to the log file, not the client; FCLIENT is the opposite. */
188 enum logcode { FNONE=0, FERROR=1, FINFO=2, FLOG=3, FCLIENT=4, FSOCKERR=5 };
190 /* Messages types that are sent over the message channel. The logcode
191 * values must all be present here with identical numbers. */
193 MSG_DATA=0, /* raw data on the multiplexed stream */
194 MSG_ERROR=FERROR, MSG_INFO=FINFO, /* remote logging */
195 MSG_LOG=FLOG, MSG_CLIENT=FCLIENT, MSG_SOCKERR=FSOCKERR, /* sibling logging */
196 MSG_REDO=9, /* reprocess indicated flist index */
197 MSG_FLIST=20, /* extra file list over sibling socket */
198 MSG_FLIST_EOF=21,/* we've transmitted all the file lists */
199 MSG_IO_ERROR=22,/* the sending side had an I/O error */
200 MSG_NOOP=42, /* a do-nothing message */
201 MSG_SUCCESS=100,/* successfully updated indicated flist index */
202 MSG_DELETED=101,/* successfully deleted a file on receiving side */
203 MSG_NO_SEND=102,/* sender failed to open a file we wanted */
204 MSG_DONE=86 /* current phase is done */
208 #define NDX_FLIST_EOF -2
209 #define NDX_FLIST_OFFSET -101
215 /* The default RSYNC_RSH is always set in config.h. */
218 #ifdef HAVE_SYS_TYPES_H
219 # include <sys/types.h>
221 #ifdef HAVE_SYS_STAT_H
222 # include <sys/stat.h>
228 # ifdef HAVE_STDLIB_H
233 # if !defined STDC_HEADERS && defined HAVE_MEMORY_H
238 #ifdef HAVE_STRINGS_H
239 # include <strings.h>
241 #ifdef HAVE_INTTYPES_H
242 # include <inttypes.h>
248 #ifdef HAVE_SYS_PARAM_H
249 #include <sys/param.h>
252 #if defined HAVE_MALLOC_H && (defined HAVE_MALLINFO || !defined HAVE_STDLIB_H)
256 #ifdef HAVE_SYS_SOCKET_H
257 #include <sys/socket.h>
260 #ifdef TIME_WITH_SYS_TIME
261 #include <sys/time.h>
264 #ifdef HAVE_SYS_TIME_H
265 #include <sys/time.h>
274 #ifdef HAVE_SYS_FCNTL_H
275 #include <sys/fcntl.h>
279 #ifdef HAVE_SYS_IOCTL_H
280 #include <sys/ioctl.h>
283 #ifdef HAVE_SYS_FILIO_H
284 #include <sys/filio.h>
288 #ifdef HAVE_SYS_WAIT_H
289 #include <sys/wait.h>
303 #ifdef HAVE_SYS_SELECT_H
304 #include <sys/select.h>
307 #ifdef HAVE_SYS_MODE_H
308 /* apparently AIX needs this for S_ISLNK */
310 #include <sys/mode.h>
318 /* these are needed for the uid/gid mapping code */
323 #include <netinet/in.h>
324 #include <arpa/inet.h>
327 #include <sys/file.h>
332 # define dirent direct
333 # ifdef HAVE_SYS_NDIR_H
334 # include <sys/ndir.h>
336 # ifdef HAVE_SYS_DIR_H
337 # include <sys/dir.h>
344 #ifdef MAJOR_IN_MKDEV
345 #include <sys/mkdev.h>
346 # if !defined makedev && (defined mkdev || defined _WIN32 || defined __WIN32__)
347 # define makedev mkdev
349 #elif defined MAJOR_IN_SYSMACROS
350 #include <sys/sysmacros.h>
353 #ifdef MAKEDEV_TAKES_3_ARGS
354 #define MAKEDEV(devmajor,devminor) makedev(0,devmajor,devminor)
356 #define MAKEDEV(devmajor,devminor) makedev(devmajor,devminor)
367 #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H
372 #elif defined ICONV_CONST
378 #include "lib/pool_alloc.h"
383 #define uchar unsigned char
386 #ifdef SIGNED_CHAR_OK
387 #define schar signed char
393 #if SIZEOF_INT16_T == 2
394 # define int16 int16_t
401 #if SIZEOF_UINT16_T == 2
402 # define uint16 uint16_t
404 # define uint16 unsigned int16
408 /* Find a variable that is either exactly 32-bits or longer.
409 * If some code depends on 32-bit truncation, it will need to
410 * take special action in a "#if SIZEOF_INT32 > 4" section. */
412 #if SIZEOF_INT32_T == 4
413 # define int32 int32_t
414 # define SIZEOF_INT32 4
415 #elif SIZEOF_INT == 4
417 # define SIZEOF_INT32 4
418 #elif SIZEOF_LONG == 4
420 # define SIZEOF_INT32 4
421 #elif SIZEOF_SHORT == 4
423 # define SIZEOF_INT32 4
426 # define SIZEOF_INT32 SIZEOF_INT
427 #elif SIZEOF_LONG > 4
429 # define SIZEOF_INT32 SIZEOF_LONG
431 # error Could not find a 32-bit integer variable
434 # define SIZEOF_INT32 4
438 #if SIZEOF_UINT32_T == 4
439 # define uint32 uint32_t
441 # define uint32 unsigned int32
445 #if SIZEOF_OFF_T == 8 || !SIZEOF_OFF64_T || !defined HAVE_STRUCT_STAT64
447 #define STRUCT_STAT struct stat
449 #define OFF_T off64_t
450 #define STRUCT_STAT struct stat64
451 #define USE_STAT64_FUNCS 1
454 /* CAVEAT: on some systems, int64 will really be a 32-bit integer IFF
455 * that's the maximum size the file system can handle and there is no
456 * 64-bit type available. The rsync source must therefore take steps
457 * to ensure that any code that really requires a 64-bit integer has
458 * it (e.g. the checksum code uses two 32-bit integers for its 64-bit
460 #if SIZEOF_INT64_T == 8
461 # define int64 int64_t
462 # define SIZEOF_INT64 8
463 #elif SIZEOF_LONG == 8
465 # define SIZEOF_INT64 8
466 #elif SIZEOF_INT == 8
468 # define SIZEOF_INT64 8
469 #elif SIZEOF_LONG_LONG == 8
470 # define int64 long long
471 # define SIZEOF_INT64 8
472 #elif SIZEOF_OFF64_T == 8
473 # define int64 off64_t
474 # define SIZEOF_INT64 8
475 #elif SIZEOF_OFF_T == 8
477 # define SIZEOF_INT64 8
480 # define SIZEOF_INT64 SIZEOF_INT
481 #elif SIZEOF_LONG > 8
483 # define SIZEOF_INT64 SIZEOF_LONG
484 #elif SIZEOF_LONG_LONG > 8
485 # define int64 long long
486 # define SIZEOF_INT64 SIZEOF_LONG_LONG
488 /* As long as it gets... */
490 # define SIZEOF_INT64 SIZEOF_OFF_T
493 /* Starting from protocol version 26, we always use 64-bit
494 * ino_t and dev_t internally, even if this platform does not
495 * allow files to have 64-bit inums. That's because the
496 * receiver needs to find duplicate (dev,ino) tuples to detect
497 * hardlinks, and it might have files coming from a platform
498 * that has 64-bit inums.
500 * The only exception is if we're on a platform with no 64-bit type at
503 * Because we use read_longint() to get these off the wire, if you
504 * transfer devices or hardlinks with dev or inum > 2**32 to a machine
505 * with no 64-bit types then you will get an overflow error. Probably
506 * not many people have that combination of machines, and you can
507 * avoid it by not preserving hardlinks or not transferring device
508 * nodes. It's not clear that any other behaviour is better.
510 * Note that if you transfer devices from a 64-bit-devt machine (say,
511 * Solaris) to a 32-bit-devt machine (say, Linux-2.2/x86) then the
512 * device numbers will be truncated. But it's a kind of silly thing
515 * FIXME: I don't think the code in flist.c has ever worked on a system
516 * where dev_t is a struct.
525 #define MIN(a,b) ((a)<(b)?(a):(b))
529 #define MAX(a,b) ((a)>(b)?(a):(b))
532 #ifndef MAXHOSTNAMELEN
533 #define MAXHOSTNAMELEN 256
536 #define SUM_LENGTH 16
537 #define SHORT_SUM_LENGTH 2
538 #define BLOCKSUM_BIAS 10
541 #define MAXPATHLEN 1024
544 /* We want a roomy line buffer that can hold more than MAXPATHLEN,
545 * and significantly more than an overly short MAXPATHLEN. */
546 #if MAXPATHLEN < 4096
547 #define BIGPATHBUFLEN (4096+1024)
549 #define BIGPATHBUFLEN (MAXPATHLEN+1024)
557 #define INADDR_NONE 0xffffffff
560 #ifndef IN_LOOPBACKNET
561 #define IN_LOOPBACKNET 127
564 #if HAVE_UNIXWARE_ACLS|HAVE_SOLARIS_ACLS|HAVE_HPUX_ACLS
565 #define ACLS_NEED_MASK 1
574 const char *dirname; /* The dir info inside the transfer */
575 time_t modtime; /* When the item was last modified */
576 uint32 len32; /* Lowest 32 bits of the file's length */
577 uint16 mode; /* The item's type and permissions */
578 uint16 flags; /* The FLAG_* bits for this item */
579 const char basename[1]; /* The basename (AKA filename) follows */
582 extern int file_extra_cnt;
586 extern int xattrs_ndx;
588 #define FILE_STRUCT_LEN (offsetof(struct file_struct, basename))
589 #define EXTRA_LEN (sizeof (union file_extras))
590 #define PTR_EXTRA_LEN ((sizeof (char *) + EXTRA_LEN - 1) / EXTRA_LEN)
591 #define DEV_EXTRA_CNT 2
592 #define DIRNODE_EXTRA_CNT 3
593 #define SUM_EXTRA_CNT ((MAX_DIGEST_LEN + EXTRA_LEN - 1) / EXTRA_LEN)
595 #define REQ_EXTRA(f,ndx) ((union file_extras*)(f) - (ndx))
596 #define OPT_EXTRA(f,bump) ((union file_extras*)(f) - file_extra_cnt - 1 - (bump))
598 #define LEN64_BUMP(f) ((f)->flags & FLAG_LENGTH64 ? 1 : 0)
599 #define HLINK_BUMP(f) (F_IS_HLINKED(f) ? 1 : 0)
600 #define ACL_BUMP(f) (acls_ndx ? 1 : 0)
602 /* The length applies to all items. */
604 #define F_LENGTH(f) ((int64)(f)->len32)
606 #define F_LENGTH(f) ((int64)(f)->len32 + ((f)->flags & FLAG_LENGTH64 \
607 ? (int64)OPT_EXTRA(f, 0)->unum << 32 : 0))
610 /* If there is a symlink string, it is always right after the basename */
611 #define F_SYMLINK(f) ((f)->basename + strlen((f)->basename) + 1)
613 /* The sending side always has this available: */
614 #define F_PATHNAME(f) (*(const char**)REQ_EXTRA(f, PTR_EXTRA_LEN))
616 /* The receiving side always has this available: */
617 #define F_DEPTH(f) REQ_EXTRA(f, 1)->num
619 /* When the associated option is on, all entries will have these present: */
620 #define F_OWNER(f) REQ_EXTRA(f, uid_ndx)->unum
621 #define F_GROUP(f) REQ_EXTRA(f, gid_ndx)->unum
622 #define F_ACL(f) REQ_EXTRA(f, acls_ndx)->num
623 #define F_XATTR(f) REQ_EXTRA(f, xattrs_ndx)->num
624 #define F_NDX(f) REQ_EXTRA(f, ic_ndx)->num
626 /* These items are per-entry optional: */
627 #define F_HL_GNUM(f) OPT_EXTRA(f, LEN64_BUMP(f))->num /* non-dirs */
628 #define F_HL_PREV(f) OPT_EXTRA(f, LEN64_BUMP(f))->num /* non-dirs */
629 #define F_DIR_NODE_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) \
630 + DIRNODE_EXTRA_CNT - 1)->num) /* sender dirs */
631 #define F_DIR_DEFACL(f) OPT_EXTRA(f, LEN64_BUMP(f))->unum /* receiver dirs */
632 #define F_DIR_DEV_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) + ACL_BUMP(f) \
633 + DEV_EXTRA_CNT - 1)->unum) /* receiver dirs */
635 /* This optional item might follow an F_HL_*() item.
636 * (Note: a device doesn't need to check LEN64_BUMP(f).) */
637 #define F_RDEV_P(f) (&OPT_EXTRA(f, HLINK_BUMP(f) + 2 - 1)->unum)
639 /* The sum is only present on regular files. */
640 #define F_SUM(f) ((char*)OPT_EXTRA(f, LEN64_BUMP(f) + HLINK_BUMP(f) \
641 + SUM_EXTRA_CNT - 1))
643 /* Some utility defines: */
644 #define F_IS_ACTIVE(f) (f)->basename[0]
645 #define F_IS_HLINKED(f) ((f)->flags & FLAG_HLINKED)
647 #define F_HLINK_NOT_FIRST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_FIRST)
648 #define F_HLINK_NOT_LAST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_LAST)
650 #define DEV_MAJOR(a) (a)[0]
651 #define DEV_MINOR(a) (a)[1]
653 #define DIR_PARENT(a) (a)[0]
654 #define DIR_FIRST_CHILD(a) (a)[1]
655 #define DIR_NEXT_SIBLING(a) (a)[2]
658 * Start the flist array at FLIST_START entries and grow it
659 * by doubling until FLIST_LINEAR then grow by FLIST_LINEAR
661 #define FLIST_START (32 * 1024)
662 #define FLIST_LINEAR (FLIST_START * 512)
665 * Extent size for allocation pools: A minimum size of 128KB
666 * is needed to mmap them so that freeing will release the
669 * Larger sizes reduce leftover fragments and speed free calls
670 * (when they happen). Smaller sizes increase the chance of
671 * freed allocations freeing whole extents.
673 #define NORMAL_EXTENT (256 * 1024)
674 #define SMALL_EXTENT (128 * 1024)
676 #define FLIST_TEMP (1<<1)
679 struct file_list *next, *prev;
680 struct file_struct **files, **sorted;
681 alloc_pool_t file_pool;
684 int low, high; /* 0-relative index values excluding empties */
685 int ndx_start; /* the start offset for inc_recurse mode */
686 int ndx_end; /* the end offset for inc_recurse mode */
687 int parent_ndx; /* dir_flist index of parent directory */
688 int in_progress, to_redo;
691 #define SUMFLG_SAME_OFFSET (1<<0)
694 OFF_T offset; /**< offset in file of this chunk */
695 int32 len; /**< length of chunk of file */
696 uint32 sum1; /**< simple checksum */
697 int32 chain; /**< next hash-table collision */
698 short flags; /**< flag bits */
699 char sum2[SUM_LENGTH]; /**< checksum */
703 OFF_T flength; /**< total file length */
704 struct sum_buf *sums; /**< points to info for each chunk */
705 int32 count; /**< how many chunks */
706 int32 blength; /**< block_length */
707 int32 remainder; /**< flength % block_length */
708 int s2length; /**< sum2_length */
712 OFF_T file_size; /* File size (from stat) */
713 OFF_T p_offset; /* Window start */
714 OFF_T p_fd_offset; /* offset of cursor in fd ala lseek */
715 char *p; /* Window pointer */
716 int32 p_size; /* Largest window size we allocated */
717 int32 p_len; /* Latest (rounded) window size */
718 int32 def_window_size; /* Default window size */
719 int fd; /* File Descriptor */
720 int status; /* first errno from read errors */
723 #define MATCHFLG_WILD (1<<0) /* pattern has '*', '[', and/or '?' */
724 #define MATCHFLG_WILD2 (1<<1) /* pattern has '**' */
725 #define MATCHFLG_WILD2_PREFIX (1<<2) /* pattern starts with "**" */
726 #define MATCHFLG_WILD3_SUFFIX (1<<3) /* pattern ends with "***" */
727 #define MATCHFLG_ABS_PATH (1<<4) /* path-match on absolute path */
728 #define MATCHFLG_INCLUDE (1<<5) /* this is an include, not an exclude */
729 #define MATCHFLG_DIRECTORY (1<<6) /* this matches only directories */
730 #define MATCHFLG_WORD_SPLIT (1<<7) /* split rules on whitespace */
731 #define MATCHFLG_NO_INHERIT (1<<8) /* don't inherit these rules */
732 #define MATCHFLG_NO_PREFIXES (1<<9) /* parse no prefixes from patterns */
733 #define MATCHFLG_MERGE_FILE (1<<10)/* specifies a file to merge */
734 #define MATCHFLG_PERDIR_MERGE (1<<11)/* merge-file is searched per-dir */
735 #define MATCHFLG_EXCLUDE_SELF (1<<12)/* merge-file name should be excluded */
736 #define MATCHFLG_FINISH_SETUP (1<<13)/* per-dir merge file needs setup */
737 #define MATCHFLG_NEGATE (1<<14)/* rule matches when pattern does not */
738 #define MATCHFLG_CVS_IGNORE (1<<15)/* rule was -C or :C */
739 #define MATCHFLG_SENDER_SIDE (1<<16)/* rule applies to the sending side */
740 #define MATCHFLG_RECEIVER_SIDE (1<<17)/* rule applies to the receiving side */
741 #define MATCHFLG_CLEAR_LIST (1<<18)/* this item is the "!" token */
742 #define MATCHFLG_PERISHABLE (1<<19)/* perishable if parent dir goes away */
744 #define MATCHFLGS_FROM_CONTAINER (MATCHFLG_ABS_PATH | MATCHFLG_INCLUDE \
745 | MATCHFLG_DIRECTORY | MATCHFLG_SENDER_SIDE \
746 | MATCHFLG_NEGATE | MATCHFLG_RECEIVER_SIDE \
747 | MATCHFLG_PERISHABLE)
749 struct filter_struct {
750 struct filter_struct *next;
755 struct filter_list_struct *mergelist;
759 struct filter_list_struct {
760 struct filter_struct *head;
761 struct filter_struct *tail;
767 int64 total_transferred_size;
772 int64 flist_buildtime;
773 int64 flist_xfertime;
776 int num_transferred_files;
777 int current_file_index;
780 struct chmod_mode_struct;
782 #define EMPTY_ITEM_LIST {NULL, 0, 0}
790 #define EXPAND_ITEM_LIST(lp, type, incr) \
791 (type*)expand_item_list(lp, sizeof (type), #type, incr)
793 #include "byteorder.h"
794 #include "lib/mdigest.h"
795 #include "lib/wildmatch.h"
796 #include "lib/permstring.h"
797 #include "lib/addrinfo.h"
800 #define __attribute__(x)
807 #define UNUSED(x) x __attribute__((__unused__))
809 #define NORETURN __attribute__((__noreturn__))
815 struct rsync_acl *acc_acl; /* access ACL */
816 struct rsync_acl *def_acl; /* default ACL */
818 #ifdef SUPPORT_XATTRS
823 #define ACL_READY(sx) ((sx).acc_acl != NULL)
824 #define XATTR_READY(sx) ((sx).xattr != NULL)
828 #ifndef SUPPORT_XATTRS
829 #define x_stat(fn,fst,xst) do_stat(fn,fst)
830 #define x_lstat(fn,fst,xst) do_lstat(fn,fst)
831 #define x_fstat(fd,fst,xst) do_fstat(fd,fst)
834 /* We have replacement versions of these if they're missing. */
835 #ifndef HAVE_ASPRINTF
836 int asprintf(char **ptr, const char *format, ...);
839 #ifndef HAVE_VASPRINTF
840 int vasprintf(char **ptr, const char *format, va_list ap);
843 #if !defined HAVE_VSNPRINTF || !defined HAVE_C99_VSNPRINTF
844 #define vsnprintf rsync_vsnprintf
845 int vsnprintf(char *str, size_t count, const char *fmt, va_list args);
848 #if !defined HAVE_SNPRINTF || !defined HAVE_C99_VSNPRINTF
849 #define snprintf rsync_snprintf
850 int snprintf(char *str, size_t count, const char *fmt,...);
854 #ifndef HAVE_STRERROR
855 extern char *sys_errlist[];
856 #define strerror(i) sys_errlist[i]
860 # define strchr index
861 # define strrchr rindex
864 #ifndef HAVE_ERRNO_DECL
869 #define SUPPORT_LINKS 1
872 #define SUPPORT_HARD_LINKS 1
875 #ifdef HAVE_SIGACTION
876 #define SIGACTION(n,h) sigact.sa_handler=(h), sigaction((n),&sigact,NULL)
877 #define signal(n,h) we_need_to_call_SIGACTION_not_signal(n,h)
879 #define SIGACTION(n,h) signal(n,h)
883 #define EWOULDBLOCK EAGAIN
887 #define STDIN_FILENO 0
890 #ifndef STDOUT_FILENO
891 #define STDOUT_FILENO 1
894 #ifndef STDERR_FILENO
895 #define STDERR_FILENO 2
907 #define ACCESSPERMS 0777
914 #define CHMOD_BITS (S_ISUID | S_ISGID | S_ISVTX | ACCESSPERMS)
917 #define _S_IFMT 0170000
921 #define _S_IFLNK 0120000
925 #define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK))
929 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
933 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
938 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
940 #define S_ISSOCK(mode) (0)
946 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
948 #define S_ISFIFO(mode) (0)
953 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
957 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
960 /* work out what fcntl flag to use for non-blocking */
962 # define NONBLOCK_FLAG O_NONBLOCK
964 # define NONBLOCK_FLAG O_NDELAY
966 # define NONBLOCK_FLAG FNDELAY
969 #ifndef INADDR_LOOPBACK
970 #define INADDR_LOOPBACK 0x7f000001
974 #define INADDR_NONE 0xffffffff
977 #define IS_SPECIAL(mode) (S_ISSOCK(mode) || S_ISFIFO(mode))
978 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode))
980 /* Initial mask on permissions given to temporary files. Mask off setuid
981 bits and group access because of potential race-condition security
982 holes, and mask other access because mode 707 is bizarre */
983 #define INITACCESSPERMS 0700
985 /* handler for null strings in printf format */
986 #define NS(s) ((s)?(s):"<NULL>")
988 /* Convenient wrappers for malloc and realloc. Use them. */
989 #define new(type) ((type *)malloc(sizeof(type)))
990 #define new_array(type, num) ((type *)_new_array(sizeof(type), (num)))
991 #define realloc_array(ptr, type, num) ((type *)_realloc_array((ptr), sizeof(type), (num)))
993 /* use magic gcc attributes to catch format errors */
994 void rprintf(enum logcode , const char *, ...)
995 __attribute__((format (printf, 2, 3)))
998 /* This is just like rprintf, but it also tries to print some
999 * representation of the error code. Normally errcode = errno. */
1000 void rsyserr(enum logcode, int, const char *, ...)
1001 __attribute__((format (printf, 3, 4)))
1004 /* Make sure that the O_BINARY flag is defined. */
1009 #ifndef HAVE_STRLCPY
1010 size_t strlcpy(char *d, const char *s, size_t bufsize);
1013 #ifndef HAVE_STRLCAT
1014 size_t strlcat(char *d, const char *s, size_t bufsize);
1018 #define WEXITSTATUS(stat) ((int)(((stat)>>8)&0xFF))
1021 #define WIFEXITED(stat) ((int)((stat)&0xFF) == 0)
1024 #define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__)
1027 #define MY_UID() geteuid()
1029 #define MY_UID() getuid()
1033 #define MY_GID() getegid()
1035 #define MY_GID() getgid()
1040 #ifndef HAVE_INET_NTOP
1041 const char *inet_ntop(int af, const void *src, char *dst, size_t size);
1044 #ifndef HAVE_INET_PTON
1045 int inet_pton(int af, const char *src, void *dst);
1048 #ifdef MAINTAINER_MODE
1049 const char *get_panic_action(void);
1052 static inline int to_wire_mode(mode_t mode)
1054 #ifdef SUPPORT_LINKS
1055 #if _S_IFLNK != 0120000
1057 return (mode & ~(_S_IFMT)) | 0120000;
1063 static inline mode_t from_wire_mode(int mode)
1065 #if _S_IFLNK != 0120000
1066 if ((mode & (_S_IFMT)) == 0120000)
1067 return (mode & ~(_S_IFMT)) | _S_IFLNK;
1073 isDigit(const char *ptr)
1075 return isdigit(*(unsigned char *)ptr);
1079 isPrint(const char *ptr)
1081 return isprint(*(unsigned char *)ptr);
1085 isSpace(const char *ptr)
1087 return isspace(*(unsigned char *)ptr);
1091 isLower(const char *ptr)
1093 return islower(*(unsigned char *)ptr);
1097 isUpper(const char *ptr)
1099 return isupper(*(unsigned char *)ptr);
1103 toLower(const char *ptr)
1105 return tolower(*(unsigned char *)ptr);
1109 toUpper(const char *ptr)
1111 return toupper(*(unsigned char *)ptr);