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 (devices only) */
53 #define XMIT_NO_CONTENT_DIR (1<<8) /* protocols 30 - now (dirs only) */
54 #define XMIT_HLINKED (1<<9) /* protocols 28 - now */
55 #define XMIT_SAME_DEV_pre30 (1<<10) /* protocols 28 - 29 */
56 #define XMIT_USER_NAME_FOLLOWS (1<<10) /* protocols 30 - now */
57 #define XMIT_RDEV_MINOR_8_pre30 (1<<11) /* protocols 28 - 29 */
58 #define XMIT_GROUP_NAME_FOLLOWS (1<<11) /* protocols 30 - now */
59 #define XMIT_HLINK_FIRST (1<<12) /* protocols 30 - now (HLINKED files only) */
61 /* These flags are used in the live flist data. */
63 #define FLAG_TOP_DIR (1<<0) /* sender/receiver/generator */
64 #define FLAG_FILE_SENT (1<<1) /* sender/receiver/generator */
65 #define FLAG_DIR_CREATED (1<<1) /* generator */
66 #define FLAG_CONTENT_DIR (1<<2) /* sender/receiver/generator */
67 #define FLAG_MOUNT_DIR (1<<3) /* sender/generator */
68 #define FLAG_DUPLICATE (1<<4) /* sender */
69 #define FLAG_MISSING_DIR (1<<4) /* generator */
70 #define FLAG_HLINKED (1<<5) /* receiver/generator (checked on all types) */
71 #define FLAG_HLINK_FIRST (1<<6) /* receiver/generator (w/FLAG_HLINKED) */
72 #define FLAG_IMPLIED_DIR (1<<6) /* sender/receiver/generator (dirs only) */
73 #define FLAG_HLINK_LAST (1<<7) /* receiver/generator */
74 #define FLAG_HLINK_DONE (1<<8) /* receiver/generator (checked on all types) */
75 #define FLAG_LENGTH64 (1<<9) /* sender/receiver/generator */
76 #define FLAG_SKIP_GROUP (1<<10) /* receiver/generator */
78 /* These flags are passed to functions but not stored. */
80 #define FLAG_DIVERT_DIRS (1<<16)/* sender */
82 #define BITS_SET(val,bits) (((val) & (bits)) == (bits))
83 #define BITS_SETnUNSET(val,onbits,offbits) (((val) & ((onbits)|(offbits))) == (onbits))
84 #define BITS_EQUAL(b1,b2,mask) (((unsigned)(b1) & (unsigned)(mask)) \
85 == ((unsigned)(b2) & (unsigned)(mask)))
87 /* update this if you make incompatible changes */
88 #define PROTOCOL_VERSION 30
90 /* This is used when working on a new protocol version in CVS, and should
91 * be a new non-zero value for each CVS change that affects the protocol.
92 * It must ALWAYS be 0 when the protocol goes final! */
93 #define SUBPROTOCOL_VERSION 13
95 /* We refuse to interoperate with versions that are not in this range.
96 * Note that we assume we'll work with later versions: the onus is on
97 * people writing them to make sure that they don't send us anything
98 * we won't understand.
100 * Interoperation with old but supported protocol versions
101 * should cause a warning to be printed. At a future date
102 * the old protocol will become the minimum and
103 * compatibility code removed.
105 * There are two possible explanations for the limit at
106 * MAX_PROTOCOL_VERSION: either to allow new major-rev versions that
107 * do not interoperate with us, and (more likely) so that we can
108 * detect an attempt to connect rsync to a non-rsync server, which is
109 * unlikely to begin by sending a byte between MIN_PROTOCL_VERSION and
110 * MAX_PROTOCOL_VERSION. */
112 #define MIN_PROTOCOL_VERSION 20
113 #define OLD_PROTOCOL_VERSION 25
114 #define MAX_PROTOCOL_VERSION 40
116 #define FILECNT_LOOKAHEAD 1000
118 #define RSYNC_PORT 873
120 #define SPARSE_WRITE_SIZE (1024)
121 #define WRITE_SIZE (32*1024)
122 #define CHUNK_SIZE (32*1024)
123 #define MAX_MAP_SIZE (256*1024)
124 #define IO_BUFFER_SIZE (4092)
125 #define MAX_BLOCK_SIZE ((int32)1 << 17)
127 #define IOERR_GENERAL (1<<0) /* For backward compatibility, this must == 1 */
128 #define IOERR_VANISHED (1<<1)
129 #define IOERR_DEL_LIMIT (1<<2)
131 #define MAX_ARGS 1000
132 #define MAX_BASIS_DIRS 20
133 #define MAX_SERVER_ARGS (MAX_BASIS_DIRS*2 + 100)
138 #define SERVER_FILTERS 1
139 #define ALL_FILTERS 2
141 #define XFLG_FATAL_ERRORS (1<<0)
142 #define XFLG_OLD_PREFIXES (1<<1)
143 #define XFLG_ANCHORED2ABS (1<<2)
144 #define XFLG_ABS_IF_SLASH (1<<3)
146 #define ATTRS_REPORT (1<<0)
147 #define ATTRS_SKIP_MTIME (1<<1)
150 #define NORMAL_FLUSH 0
152 #define PDIR_CREATE 1
153 #define PDIR_DELETE 0
155 /* Note: 0x00 - 0x7F are used for basis_dir[] indexes! */
156 #define FNAMECMP_BASIS_DIR_LOW 0x00 /* Must remain 0! */
157 #define FNAMECMP_BASIS_DIR_HIGH 0x7F
158 #define FNAMECMP_FNAME 0x80
159 #define FNAMECMP_PARTIAL_DIR 0x81
160 #define FNAMECMP_BACKUP 0x82
161 #define FNAMECMP_FUZZY 0x83
163 /* For use by the itemize_changes code */
164 #define ITEM_REPORT_ATIME (1<<0)
165 #define ITEM_REPORT_CHECKSUM (1<<1)
166 #define ITEM_REPORT_SIZE (1<<2)
167 #define ITEM_REPORT_TIME (1<<3)
168 #define ITEM_REPORT_PERMS (1<<4)
169 #define ITEM_REPORT_OWNER (1<<5)
170 #define ITEM_REPORT_GROUP (1<<6)
171 #define ITEM_REPORT_ACL (1<<7)
172 #define ITEM_REPORT_XATTR (1<<8)
173 #define ITEM_BASIS_TYPE_FOLLOWS (1<<11)
174 #define ITEM_XNAME_FOLLOWS (1<<12)
175 #define ITEM_IS_NEW (1<<13)
176 #define ITEM_LOCAL_CHANGE (1<<14)
177 #define ITEM_TRANSFER (1<<15)
178 /* These are outside the range of the transmitted flags. */
179 #define ITEM_MISSING_DATA (1<<16) /* used by log_formatted() */
180 #define ITEM_DELETED (1<<17) /* used by log_formatted() */
181 #define ITEM_MATCHED (1<<18) /* used by itemize() */
183 #define SIGNIFICANT_ITEM_FLAGS (~(\
184 ITEM_BASIS_TYPE_FOLLOWS | ITEM_XNAME_FOLLOWS | ITEM_LOCAL_CHANGE))
186 #define CFN_KEEP_LEADING_DOT_DIR (1<<0)
187 #define CFN_KEEP_TRAILING_SLASH (1<<1)
188 #define CFN_DROP_TRAILING_DOT_DIR (1<<2)
189 #define CFN_COLLAPSE_DOT_DOT_DIRS (1<<3)
191 /* Log-message categories. Only FERROR and FINFO get sent over the socket,
192 * but FLOG and FSOCKERR can be sent over the receiver -> generator pipe.
193 * FLOG only goes to the log file, not the client; FCLIENT is the opposite. */
194 enum logcode { FNONE=0, FERROR=1, FINFO=2, FLOG=3, FCLIENT=4, FSOCKERR=5 };
196 /* Messages types that are sent over the message channel. The logcode
197 * values must all be present here with identical numbers. */
199 MSG_DATA=0, /* raw data on the multiplexed stream */
200 MSG_ERROR=FERROR, MSG_INFO=FINFO, /* remote logging */
201 MSG_LOG=FLOG, MSG_CLIENT=FCLIENT, MSG_SOCKERR=FSOCKERR, /* sibling logging */
202 MSG_REDO=9, /* reprocess indicated flist index */
203 MSG_FLIST=20, /* extra file list over sibling socket */
204 MSG_FLIST_EOF=21,/* we've transmitted all the file lists */
205 MSG_IO_ERROR=22,/* the sending side had an I/O error */
206 MSG_NOOP=42, /* a do-nothing message */
207 MSG_SUCCESS=100,/* successfully updated indicated flist index */
208 MSG_DELETED=101,/* successfully deleted a file on receiving side */
209 MSG_NO_SEND=102,/* sender failed to open a file we wanted */
210 MSG_DONE=86 /* current phase is done */
214 #define NDX_FLIST_EOF -2
215 #define NDX_FLIST_OFFSET -101
221 /* The default RSYNC_RSH is always set in config.h. */
224 #ifdef HAVE_SYS_TYPES_H
225 # include <sys/types.h>
227 #ifdef HAVE_SYS_STAT_H
228 # include <sys/stat.h>
234 # ifdef HAVE_STDLIB_H
239 # if !defined STDC_HEADERS && defined HAVE_MEMORY_H
244 #ifdef HAVE_STRINGS_H
245 # include <strings.h>
247 #ifdef HAVE_INTTYPES_H
248 # include <inttypes.h>
257 #ifdef HAVE_SYS_PARAM_H
258 #include <sys/param.h>
261 #if defined HAVE_MALLOC_H && (defined HAVE_MALLINFO || !defined HAVE_STDLIB_H)
265 #ifdef HAVE_SYS_SOCKET_H
266 #include <sys/socket.h>
269 #ifdef TIME_WITH_SYS_TIME
270 #include <sys/time.h>
273 #ifdef HAVE_SYS_TIME_H
274 #include <sys/time.h>
283 #ifdef HAVE_SYS_FCNTL_H
284 #include <sys/fcntl.h>
288 #ifdef HAVE_SYS_IOCTL_H
289 #include <sys/ioctl.h>
292 #ifdef HAVE_SYS_FILIO_H
293 #include <sys/filio.h>
297 #ifdef HAVE_SYS_WAIT_H
298 #include <sys/wait.h>
312 #ifdef HAVE_SYS_SELECT_H
313 #include <sys/select.h>
316 #ifdef HAVE_SYS_MODE_H
317 /* apparently AIX needs this for S_ISLNK */
319 #include <sys/mode.h>
327 /* these are needed for the uid/gid mapping code */
332 #include <netinet/in.h>
333 #include <arpa/inet.h>
336 #include <sys/file.h>
341 # define dirent direct
342 # ifdef HAVE_SYS_NDIR_H
343 # include <sys/ndir.h>
345 # ifdef HAVE_SYS_DIR_H
346 # include <sys/dir.h>
353 #ifdef MAJOR_IN_MKDEV
354 #include <sys/mkdev.h>
355 # if !defined makedev && (defined mkdev || defined _WIN32 || defined __WIN32__)
356 # define makedev mkdev
358 #elif defined MAJOR_IN_SYSMACROS
359 #include <sys/sysmacros.h>
362 #ifdef MAKEDEV_TAKES_3_ARGS
363 #define MAKEDEV(devmajor,devminor) makedev(0,devmajor,devminor)
365 #define MAKEDEV(devmajor,devminor) makedev(devmajor,devminor)
376 #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H
396 #include "lib/pool_alloc.h"
411 typedef unsigned int size_t;
417 #define uchar unsigned char
420 #ifdef SIGNED_CHAR_OK
421 #define schar signed char
427 #if SIZEOF_INT16_T == 2
428 # define int16 int16_t
435 #if SIZEOF_UINT16_T == 2
436 # define uint16 uint16_t
438 # define uint16 unsigned int16
442 /* Find a variable that is either exactly 32-bits or longer.
443 * If some code depends on 32-bit truncation, it will need to
444 * take special action in a "#if SIZEOF_INT32 > 4" section. */
446 #if SIZEOF_INT32_T == 4
447 # define int32 int32_t
448 # define SIZEOF_INT32 4
449 #elif SIZEOF_INT == 4
451 # define SIZEOF_INT32 4
452 #elif SIZEOF_LONG == 4
454 # define SIZEOF_INT32 4
455 #elif SIZEOF_SHORT == 4
457 # define SIZEOF_INT32 4
460 # define SIZEOF_INT32 SIZEOF_INT
461 #elif SIZEOF_LONG > 4
463 # define SIZEOF_INT32 SIZEOF_LONG
465 # error Could not find a 32-bit integer variable
468 # define SIZEOF_INT32 4
472 #if SIZEOF_UINT32_T == 4
473 # define uint32 uint32_t
475 # define uint32 unsigned int32
479 #if SIZEOF_OFF_T == 8 || !SIZEOF_OFF64_T || !defined HAVE_STRUCT_STAT64
481 #define STRUCT_STAT struct stat
483 #define OFF_T off64_t
484 #define STRUCT_STAT struct stat64
485 #define USE_STAT64_FUNCS 1
488 /* CAVEAT: on some systems, int64 will really be a 32-bit integer IFF
489 * that's the maximum size the file system can handle and there is no
490 * 64-bit type available. The rsync source must therefore take steps
491 * to ensure that any code that really requires a 64-bit integer has
492 * it (e.g. the checksum code uses two 32-bit integers for its 64-bit
494 #if SIZEOF_INT64_T == 8
495 # define int64 int64_t
496 # define SIZEOF_INT64 8
497 #elif SIZEOF_LONG == 8
499 # define SIZEOF_INT64 8
500 #elif SIZEOF_INT == 8
502 # define SIZEOF_INT64 8
503 #elif SIZEOF_LONG_LONG == 8
504 # define int64 long long
505 # define SIZEOF_INT64 8
506 #elif SIZEOF_OFF64_T == 8
507 # define int64 off64_t
508 # define SIZEOF_INT64 8
509 #elif SIZEOF_OFF_T == 8
511 # define SIZEOF_INT64 8
514 # define SIZEOF_INT64 SIZEOF_INT
515 #elif SIZEOF_LONG > 8
517 # define SIZEOF_INT64 SIZEOF_LONG
518 #elif SIZEOF_LONG_LONG > 8
519 # define int64 long long
520 # define SIZEOF_INT64 SIZEOF_LONG_LONG
522 /* As long as it gets... */
524 # define SIZEOF_INT64 SIZEOF_OFF_T
533 struct ht_int32_node {
538 struct ht_int64_node {
543 #define HT_NODE(tbl, bkts, i) ((void*)((char*)(bkts) + (i)*(tbl)->node_size))
544 #define HT_KEY(node, k64) ((k64)? ((struct ht_int64_node*)(node))->key \
545 : (int64)((struct ht_int32_node*)(node))->key)
548 #define MIN(a,b) ((a)<(b)?(a):(b))
552 #define MAX(a,b) ((a)>(b)?(a):(b))
555 #ifndef MAXHOSTNAMELEN
556 #define MAXHOSTNAMELEN 256
559 #define SUM_LENGTH 16
560 #define SHORT_SUM_LENGTH 2
561 #define BLOCKSUM_BIAS 10
564 #define MAXPATHLEN 1024
567 /* We want a roomy line buffer that can hold more than MAXPATHLEN,
568 * and significantly more than an overly short MAXPATHLEN. */
569 #if MAXPATHLEN < 4096
570 #define BIGPATHBUFLEN (4096+1024)
572 #define BIGPATHBUFLEN (MAXPATHLEN+1024)
580 #define INADDR_NONE 0xffffffff
583 #ifndef IN_LOOPBACKNET
584 #define IN_LOOPBACKNET 127
587 #if HAVE_UNIXWARE_ACLS|HAVE_SOLARIS_ACLS|HAVE_HPUX_ACLS
588 #define ACLS_NEED_MASK 1
597 const char *dirname; /* The dir info inside the transfer */
598 time_t modtime; /* When the item was last modified */
599 uint32 len32; /* Lowest 32 bits of the file's length */
600 uint16 mode; /* The item's type and permissions */
601 uint16 flags; /* The FLAG_* bits for this item */
602 const char basename[1]; /* The basename (AKA filename) follows */
605 extern int file_extra_cnt;
606 extern int inc_recurse;
610 extern int xattrs_ndx;
612 #define FILE_STRUCT_LEN (offsetof(struct file_struct, basename))
613 #define EXTRA_LEN (sizeof (union file_extras))
614 #define PTR_EXTRA_CNT ((sizeof (char *) + EXTRA_LEN - 1) / EXTRA_LEN)
615 #define DEV_EXTRA_CNT 2
616 #define DIRNODE_EXTRA_CNT 3
617 #define SUM_EXTRA_CNT ((MAX_DIGEST_LEN + EXTRA_LEN - 1) / EXTRA_LEN)
619 #define REQ_EXTRA(f,ndx) ((union file_extras*)(f) - (ndx))
620 #define OPT_EXTRA(f,bump) ((union file_extras*)(f) - file_extra_cnt - 1 - (bump))
622 #define LEN64_BUMP(f) ((f)->flags & FLAG_LENGTH64 ? 1 : 0)
623 #define HLINK_BUMP(f) ((f)->flags & (FLAG_HLINKED|FLAG_HLINK_DONE) ? inc_recurse+1 : 0)
624 #define ACL_BUMP(f) (acls_ndx ? 1 : 0)
626 /* The length applies to all items. */
628 #define F_LENGTH(f) ((int64)(f)->len32)
630 #define F_LENGTH(f) ((int64)(f)->len32 + ((f)->flags & FLAG_LENGTH64 \
631 ? (int64)OPT_EXTRA(f, 0)->unum << 32 : 0))
634 /* If there is a symlink string, it is always right after the basename */
635 #define F_SYMLINK(f) ((f)->basename + strlen((f)->basename) + 1)
637 /* The sending side always has this available: */
638 #define F_PATHNAME(f) (*(const char**)REQ_EXTRA(f, PTR_EXTRA_CNT))
640 /* The receiving side always has this available: */
641 #define F_DEPTH(f) REQ_EXTRA(f, 1)->num
643 /* When the associated option is on, all entries will have these present: */
644 #define F_OWNER(f) REQ_EXTRA(f, uid_ndx)->unum
645 #define F_GROUP(f) REQ_EXTRA(f, gid_ndx)->unum
646 #define F_ACL(f) REQ_EXTRA(f, acls_ndx)->num
647 #define F_XATTR(f) REQ_EXTRA(f, xattrs_ndx)->num
648 #define F_NDX(f) REQ_EXTRA(f, ic_ndx)->num
650 /* These items are per-entry optional: */
651 #define F_HL_GNUM(f) OPT_EXTRA(f, LEN64_BUMP(f))->num /* non-dirs */
652 #define F_HL_PREV(f) OPT_EXTRA(f, LEN64_BUMP(f)+inc_recurse)->num /* non-dirs */
653 #define F_DIR_NODE_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) \
654 + DIRNODE_EXTRA_CNT - 1)->num) /* sender dirs */
655 #define F_DIR_RELNAMES_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) + DIRNODE_EXTRA_CNT \
656 + PTR_EXTRA_CNT - 1)->num) /* sender dirs */
657 #define F_DIR_DEFACL(f) OPT_EXTRA(f, LEN64_BUMP(f))->unum /* receiver dirs */
658 #define F_DIR_DEV_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) + ACL_BUMP(f) \
659 + DEV_EXTRA_CNT - 1)->unum) /* receiver dirs */
661 /* This optional item might follow an F_HL_*() item.
662 * (Note: a device doesn't need to check LEN64_BUMP(f).) */
663 #define F_RDEV_P(f) (&OPT_EXTRA(f, HLINK_BUMP(f) + 2 - 1)->unum)
665 /* The sum is only present on regular files. */
666 #define F_SUM(f) ((char*)OPT_EXTRA(f, LEN64_BUMP(f) + HLINK_BUMP(f) \
667 + SUM_EXTRA_CNT - 1))
669 /* Some utility defines: */
670 #define F_IS_ACTIVE(f) (f)->basename[0]
671 #define F_IS_HLINKED(f) ((f)->flags & FLAG_HLINKED)
673 #define F_HLINK_NOT_FIRST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_FIRST)
674 #define F_HLINK_NOT_LAST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_LAST)
676 /* These access the F_DIR_DEV_P() and F_RDEV_P() values: */
677 #define DEV_MAJOR(a) (a)[0]
678 #define DEV_MINOR(a) (a)[1]
680 /* These access the F_DIRS_NODE_P() values: */
681 #define DIR_PARENT(a) (a)[0]
682 #define DIR_FIRST_CHILD(a) (a)[1]
683 #define DIR_NEXT_SIBLING(a) (a)[2]
686 * Start the flist array at FLIST_START entries and grow it
687 * by doubling until FLIST_LINEAR then grow by FLIST_LINEAR
689 #define FLIST_START (32 * 1024)
690 #define FLIST_LINEAR (FLIST_START * 512)
693 * Extent size for allocation pools: A minimum size of 128KB
694 * is needed to mmap them so that freeing will release the
697 * Larger sizes reduce leftover fragments and speed free calls
698 * (when they happen). Smaller sizes increase the chance of
699 * freed allocations freeing whole extents.
701 #define NORMAL_EXTENT (256 * 1024)
702 #define SMALL_EXTENT (128 * 1024)
704 #define FLIST_TEMP (1<<1)
707 struct file_list *next, *prev;
708 struct file_struct **files, **sorted;
709 alloc_pool_t file_pool;
712 int low, high; /* 0-relative index values excluding empties */
713 int ndx_start; /* the start offset for inc_recurse mode */
714 int ndx_end; /* the end offset for inc_recurse mode */
715 int parent_ndx; /* dir_flist index of parent directory */
716 int in_progress, to_redo;
719 #define SUMFLG_SAME_OFFSET (1<<0)
722 OFF_T offset; /**< offset in file of this chunk */
723 int32 len; /**< length of chunk of file */
724 uint32 sum1; /**< simple checksum */
725 int32 chain; /**< next hash-table collision */
726 short flags; /**< flag bits */
727 char sum2[SUM_LENGTH]; /**< checksum */
731 OFF_T flength; /**< total file length */
732 struct sum_buf *sums; /**< points to info for each chunk */
733 int32 count; /**< how many chunks */
734 int32 blength; /**< block_length */
735 int32 remainder; /**< flength % block_length */
736 int s2length; /**< sum2_length */
740 OFF_T file_size; /* File size (from stat) */
741 OFF_T p_offset; /* Window start */
742 OFF_T p_fd_offset; /* offset of cursor in fd ala lseek */
743 char *p; /* Window pointer */
744 int32 p_size; /* Largest window size we allocated */
745 int32 p_len; /* Latest (rounded) window size */
746 int32 def_window_size; /* Default window size */
747 int fd; /* File Descriptor */
748 int status; /* first errno from read errors */
751 #define MATCHFLG_WILD (1<<0) /* pattern has '*', '[', and/or '?' */
752 #define MATCHFLG_WILD2 (1<<1) /* pattern has '**' */
753 #define MATCHFLG_WILD2_PREFIX (1<<2) /* pattern starts with "**" */
754 #define MATCHFLG_WILD3_SUFFIX (1<<3) /* pattern ends with "***" */
755 #define MATCHFLG_ABS_PATH (1<<4) /* path-match on absolute path */
756 #define MATCHFLG_INCLUDE (1<<5) /* this is an include, not an exclude */
757 #define MATCHFLG_DIRECTORY (1<<6) /* this matches only directories */
758 #define MATCHFLG_WORD_SPLIT (1<<7) /* split rules on whitespace */
759 #define MATCHFLG_NO_INHERIT (1<<8) /* don't inherit these rules */
760 #define MATCHFLG_NO_PREFIXES (1<<9) /* parse no prefixes from patterns */
761 #define MATCHFLG_MERGE_FILE (1<<10)/* specifies a file to merge */
762 #define MATCHFLG_PERDIR_MERGE (1<<11)/* merge-file is searched per-dir */
763 #define MATCHFLG_EXCLUDE_SELF (1<<12)/* merge-file name should be excluded */
764 #define MATCHFLG_FINISH_SETUP (1<<13)/* per-dir merge file needs setup */
765 #define MATCHFLG_NEGATE (1<<14)/* rule matches when pattern does not */
766 #define MATCHFLG_CVS_IGNORE (1<<15)/* rule was -C or :C */
767 #define MATCHFLG_SENDER_SIDE (1<<16)/* rule applies to the sending side */
768 #define MATCHFLG_RECEIVER_SIDE (1<<17)/* rule applies to the receiving side */
769 #define MATCHFLG_CLEAR_LIST (1<<18)/* this item is the "!" token */
770 #define MATCHFLG_PERISHABLE (1<<19)/* perishable if parent dir goes away */
772 #define MATCHFLGS_FROM_CONTAINER (MATCHFLG_ABS_PATH | MATCHFLG_INCLUDE \
773 | MATCHFLG_DIRECTORY | MATCHFLG_SENDER_SIDE \
774 | MATCHFLG_NEGATE | MATCHFLG_RECEIVER_SIDE \
775 | MATCHFLG_PERISHABLE)
777 struct filter_struct {
778 struct filter_struct *next;
783 struct filter_list_struct *mergelist;
787 struct filter_list_struct {
788 struct filter_struct *head;
789 struct filter_struct *tail;
795 int64 total_transferred_size;
800 int64 flist_buildtime;
801 int64 flist_xfertime;
804 int num_transferred_files;
805 int current_file_index;
808 struct chmod_mode_struct;
810 #define EMPTY_ITEM_LIST {NULL, 0, 0}
818 #define EXPAND_ITEM_LIST(lp, type, incr) \
819 (type*)expand_item_list(lp, sizeof (type), #type, incr)
821 #define EMPTY_XBUF {NULL, 0, 0, 0}
825 size_t pos; /* pos = read pos in the buf */
826 size_t len; /* len = chars following pos */
827 size_t size; /* size = total space in buf */
830 #define INIT_XBUF(xb, str, ln, sz) (xb).buf = (str), (xb).len = (ln), (xb).size = (sz), (xb).pos = 0
831 #define INIT_XBUF_STRLEN(xb, str) (xb).buf = (str), (xb).len = strlen((xb).buf), (xb).size = (-1), (xb).pos = 0
832 /* This one is used to make an output xbuf based on a char[] buffer: */
833 #define INIT_CONST_XBUF(xb, bf) (xb).buf = (bf), (xb).size = sizeof (bf), (xb).len = (xb).pos = 0
835 #define ICB_EXPAND_OUT (1<<0)
836 #define ICB_INCLUDE_BAD (1<<1)
837 #define ICB_INCLUDE_INCOMPLETE (1<<2)
839 #define RL_EOL_NULLS (1<<0)
840 #define RL_DUMP_COMMENTS (1<<1)
841 #define RL_CONVERT (1<<2)
845 char fname[1]; /* has variable size */
848 #include "byteorder.h"
849 #include "lib/mdigest.h"
850 #include "lib/wildmatch.h"
851 #include "lib/permstring.h"
852 #include "lib/addrinfo.h"
855 #define __attribute__(x)
862 #define UNUSED(x) x __attribute__((__unused__))
864 #define NORETURN __attribute__((__noreturn__))
870 struct rsync_acl *acc_acl; /* access ACL */
871 struct rsync_acl *def_acl; /* default ACL */
873 #ifdef SUPPORT_XATTRS
878 #define ACL_READY(sx) ((sx).acc_acl != NULL)
879 #define XATTR_READY(sx) ((sx).xattr != NULL)
883 #ifndef SUPPORT_XATTRS
884 #define x_stat(fn,fst,xst) do_stat(fn,fst)
885 #define x_lstat(fn,fst,xst) do_lstat(fn,fst)
886 #define x_fstat(fd,fst,xst) do_fstat(fd,fst)
889 /* We have replacement versions of these if they're missing. */
890 #ifndef HAVE_ASPRINTF
891 int asprintf(char **ptr, const char *format, ...);
894 #ifndef HAVE_VASPRINTF
895 int vasprintf(char **ptr, const char *format, va_list ap);
898 #if !defined HAVE_VSNPRINTF || !defined HAVE_C99_VSNPRINTF
899 #define vsnprintf rsync_vsnprintf
900 int vsnprintf(char *str, size_t count, const char *fmt, va_list args);
903 #if !defined HAVE_SNPRINTF || !defined HAVE_C99_VSNPRINTF
904 #define snprintf rsync_snprintf
905 int snprintf(char *str, size_t count, const char *fmt,...);
909 #ifndef HAVE_STRERROR
910 extern char *sys_errlist[];
911 #define strerror(i) sys_errlist[i]
915 # define strchr index
916 # define strrchr rindex
919 #ifndef HAVE_ERRNO_DECL
924 #define SUPPORT_LINKS 1
927 #define SUPPORT_HARD_LINKS 1
930 #ifdef HAVE_SIGACTION
931 #define SIGACTION(n,h) sigact.sa_handler=(h), sigaction((n),&sigact,NULL)
932 #define signal(n,h) we_need_to_call_SIGACTION_not_signal(n,h)
934 #define SIGACTION(n,h) signal(n,h)
938 #define EWOULDBLOCK EAGAIN
942 #define STDIN_FILENO 0
945 #ifndef STDOUT_FILENO
946 #define STDOUT_FILENO 1
949 #ifndef STDERR_FILENO
950 #define STDERR_FILENO 2
962 #define ACCESSPERMS 0777
969 #define CHMOD_BITS (S_ISUID | S_ISGID | S_ISVTX | ACCESSPERMS)
972 #define _S_IFMT 0170000
976 #define _S_IFLNK 0120000
980 #define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK))
984 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
988 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
993 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
995 #define S_ISSOCK(mode) (0)
1001 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
1003 #define S_ISFIFO(mode) (0)
1008 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
1012 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
1015 /* work out what fcntl flag to use for non-blocking */
1017 # define NONBLOCK_FLAG O_NONBLOCK
1019 # define NONBLOCK_FLAG O_NDELAY
1021 # define NONBLOCK_FLAG FNDELAY
1024 #ifndef INADDR_LOOPBACK
1025 #define INADDR_LOOPBACK 0x7f000001
1029 #define INADDR_NONE 0xffffffff
1032 #define IS_SPECIAL(mode) (S_ISSOCK(mode) || S_ISFIFO(mode))
1033 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode))
1035 /* Initial mask on permissions given to temporary files. Mask off setuid
1036 bits and group access because of potential race-condition security
1037 holes, and mask other access because mode 707 is bizarre */
1038 #define INITACCESSPERMS 0700
1040 /* handler for null strings in printf format */
1041 #define NS(s) ((s)?(s):"<NULL>")
1043 /* Convenient wrappers for malloc and realloc. Use them. */
1044 #define new(type) ((type*)malloc(sizeof (type)))
1045 #define new0(type) ((type*)calloc(1, sizeof (type)))
1046 #define new_array(type, num) ((type*)_new_array((num), sizeof (type), 0))
1047 #define new_array0(type, num) ((type*)_new_array((num), sizeof (type), 1))
1048 #define realloc_array(ptr, type, num) ((type*)_realloc_array((ptr), sizeof(type), (num)))
1050 /* use magic gcc attributes to catch format errors */
1051 void rprintf(enum logcode , const char *, ...)
1052 __attribute__((format (printf, 2, 3)))
1055 /* This is just like rprintf, but it also tries to print some
1056 * representation of the error code. Normally errcode = errno. */
1057 void rsyserr(enum logcode, int, const char *, ...)
1058 __attribute__((format (printf, 3, 4)))
1061 /* Make sure that the O_BINARY flag is defined. */
1066 #ifndef HAVE_STRLCPY
1067 size_t strlcpy(char *d, const char *s, size_t bufsize);
1070 #ifndef HAVE_STRLCAT
1071 size_t strlcat(char *d, const char *s, size_t bufsize);
1075 #define WEXITSTATUS(stat) ((int)(((stat)>>8)&0xFF))
1078 #define WIFEXITED(stat) ((int)((stat)&0xFF) == 0)
1081 #define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__)
1084 #define MY_UID() geteuid()
1086 #define MY_UID() getuid()
1090 #define MY_GID() getegid()
1092 #define MY_GID() getgid()
1097 #ifndef HAVE_INET_NTOP
1098 const char *inet_ntop(int af, const void *src, char *dst, size_t size);
1101 #ifndef HAVE_INET_PTON
1102 int inet_pton(int af, const char *src, void *dst);
1105 #ifdef MAINTAINER_MODE
1106 const char *get_panic_action(void);