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) 2003-2008 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 SYMLINK_PREFIX "/rsyncd-munged/" /* This MUST have a trailing slash! */
36 #define SYMLINK_PREFIX_LEN ((int)sizeof SYMLINK_PREFIX - 1)
38 #define BACKUP_SUFFIX "~"
40 /* a non-zero CHAR_OFFSET makes the rolling sum stronger, but is
41 incompatible with older versions :-( */
44 /* These flags are only used during the flist transfer. */
46 #define XMIT_TOP_DIR (1<<0)
47 #define XMIT_SAME_MODE (1<<1)
48 #define XMIT_SAME_RDEV_pre28 (1<<2) /* protocols 20 - 27 */
49 #define XMIT_EXTENDED_FLAGS (1<<2) /* protocols 28 - now */
50 #define XMIT_SAME_UID (1<<3)
51 #define XMIT_SAME_GID (1<<4)
52 #define XMIT_SAME_NAME (1<<5)
53 #define XMIT_LONG_NAME (1<<6)
54 #define XMIT_SAME_TIME (1<<7)
55 #define XMIT_SAME_RDEV_MAJOR (1<<8) /* protocols 28 - now (devices only) */
56 #define XMIT_NO_CONTENT_DIR (1<<8) /* protocols 30 - now (dirs only) */
57 #define XMIT_HLINKED (1<<9) /* protocols 28 - now */
58 #define XMIT_SAME_DEV_pre30 (1<<10) /* protocols 28 - 29 */
59 #define XMIT_USER_NAME_FOLLOWS (1<<10) /* protocols 30 - now */
60 #define XMIT_RDEV_MINOR_8_pre30 (1<<11) /* protocols 28 - 29 */
61 #define XMIT_GROUP_NAME_FOLLOWS (1<<11) /* protocols 30 - now */
62 #define XMIT_HLINK_FIRST (1<<12) /* protocols 30 - now (HLINKED files only) */
63 #define XMIT_IO_ERROR_ENDLIST (1<<12) /* protocols 31 - now (w/XMIT_EXTENDED_FLAGS) */
65 /* These flags are used in the live flist data. */
67 #define FLAG_TOP_DIR (1<<0) /* sender/receiver/generator */
68 #define FLAG_FILE_SENT (1<<1) /* sender/receiver/generator */
69 #define FLAG_DIR_CREATED (1<<1) /* generator */
70 #define FLAG_CONTENT_DIR (1<<2) /* sender/receiver/generator */
71 #define FLAG_MOUNT_DIR (1<<3) /* sender/generator (dirs only) */
72 #define FLAG_SKIP_HLINK (1<<3) /* receiver/generator (w/FLAG_HLINKED) */
73 #define FLAG_DUPLICATE (1<<4) /* sender */
74 #define FLAG_MISSING_DIR (1<<4) /* generator */
75 #define FLAG_HLINKED (1<<5) /* receiver/generator (checked on all types) */
76 #define FLAG_HLINK_FIRST (1<<6) /* receiver/generator (w/FLAG_HLINKED) */
77 #define FLAG_IMPLIED_DIR (1<<6) /* sender/receiver/generator (dirs only) */
78 #define FLAG_HLINK_LAST (1<<7) /* receiver/generator */
79 #define FLAG_HLINK_DONE (1<<8) /* receiver/generator (checked on all types) */
80 #define FLAG_LENGTH64 (1<<9) /* sender/receiver/generator */
81 #define FLAG_SKIP_GROUP (1<<10) /* receiver/generator */
82 #define FLAG_TIME_FAILED (1<<11)/* generator */
84 /* These flags are passed to functions but not stored. */
86 #define FLAG_DIVERT_DIRS (1<<16)/* sender */
88 #define BITS_SET(val,bits) (((val) & (bits)) == (bits))
89 #define BITS_SETnUNSET(val,onbits,offbits) (((val) & ((onbits)|(offbits))) == (onbits))
90 #define BITS_EQUAL(b1,b2,mask) (((unsigned)(b1) & (unsigned)(mask)) \
91 == ((unsigned)(b2) & (unsigned)(mask)))
93 /* update this if you make incompatible changes */
94 #define PROTOCOL_VERSION 31
96 /* This is used when working on a new protocol version in CVS, and should
97 * be a new non-zero value for each CVS change that affects the protocol.
98 * It must ALWAYS be 0 when the protocol goes final (and NEVER before)! */
99 #define SUBPROTOCOL_VERSION 6
101 /* We refuse to interoperate with versions that are not in this range.
102 * Note that we assume we'll work with later versions: the onus is on
103 * people writing them to make sure that they don't send us anything
104 * we won't understand.
106 * Interoperation with old but supported protocol versions
107 * should cause a warning to be printed. At a future date
108 * the old protocol will become the minimum and
109 * compatibility code removed.
111 * There are two possible explanations for the limit at
112 * MAX_PROTOCOL_VERSION: either to allow new major-rev versions that
113 * do not interoperate with us, and (more likely) so that we can
114 * detect an attempt to connect rsync to a non-rsync server, which is
115 * unlikely to begin by sending a byte between MIN_PROTOCL_VERSION and
116 * MAX_PROTOCOL_VERSION. */
118 #define MIN_PROTOCOL_VERSION 20
119 #define OLD_PROTOCOL_VERSION 25
120 #define MAX_PROTOCOL_VERSION 40
122 #define MIN_FILECNT_LOOKAHEAD 1000
123 #define MAX_FILECNT_LOOKAHEAD 10000
125 #define RSYNC_PORT 873
127 #define SPARSE_WRITE_SIZE (1024)
128 #define WRITE_SIZE (32*1024)
129 #define CHUNK_SIZE (32*1024)
130 #define MAX_MAP_SIZE (256*1024)
131 #define IO_BUFFER_SIZE (4092)
132 #define MAX_BLOCK_SIZE ((int32)1 << 17)
134 /* For compatibility with older rsyncs */
135 #define OLD_MAX_BLOCK_SIZE ((int32)1 << 29)
137 #define IOERR_GENERAL (1<<0) /* For backward compatibility, this must == 1 */
138 #define IOERR_VANISHED (1<<1)
139 #define IOERR_DEL_LIMIT (1<<2)
141 #define MAX_ARGS 1000
142 #define MAX_BASIS_DIRS 20
143 #define MAX_SERVER_ARGS (MAX_BASIS_DIRS*2 + 100)
148 #define SERVER_FILTERS 1
149 #define ALL_FILTERS 2
151 #define XFLG_FATAL_ERRORS (1<<0)
152 #define XFLG_OLD_PREFIXES (1<<1)
153 #define XFLG_ANCHORED2ABS (1<<2) /* leading slash indicates absolute */
154 #define XFLG_ABS_IF_SLASH (1<<3) /* leading or interior slash is absolute */
155 #define XFLG_DIR2WILD3 (1<<4) /* dir/ match gets trailing *** added */
157 #define ATTRS_REPORT (1<<0)
158 #define ATTRS_SKIP_MTIME (1<<1)
161 #define NORMAL_FLUSH 0
163 #define PDIR_CREATE 1
164 #define PDIR_DELETE 0
166 /* Note: 0x00 - 0x7F are used for basis_dir[] indexes! */
167 #define FNAMECMP_BASIS_DIR_LOW 0x00 /* Must remain 0! */
168 #define FNAMECMP_BASIS_DIR_HIGH 0x7F
169 #define FNAMECMP_FNAME 0x80
170 #define FNAMECMP_PARTIAL_DIR 0x81
171 #define FNAMECMP_BACKUP 0x82
172 #define FNAMECMP_FUZZY 0x83
174 /* For use by the itemize_changes code */
175 #define ITEM_REPORT_ATIME (1<<0)
176 #define ITEM_REPORT_CHANGE (1<<1)
177 #define ITEM_REPORT_SIZE (1<<2) /* regular files only */
178 #define ITEM_REPORT_TIMEFAIL (1<<2) /* symlinks only */
179 #define ITEM_REPORT_TIME (1<<3)
180 #define ITEM_REPORT_PERMS (1<<4)
181 #define ITEM_REPORT_OWNER (1<<5)
182 #define ITEM_REPORT_GROUP (1<<6)
183 #define ITEM_REPORT_ACL (1<<7)
184 #define ITEM_REPORT_XATTR (1<<8)
185 #define ITEM_BASIS_TYPE_FOLLOWS (1<<11)
186 #define ITEM_XNAME_FOLLOWS (1<<12)
187 #define ITEM_IS_NEW (1<<13)
188 #define ITEM_LOCAL_CHANGE (1<<14)
189 #define ITEM_TRANSFER (1<<15)
190 /* These are outside the range of the transmitted flags. */
191 #define ITEM_MISSING_DATA (1<<16) /* used by log_formatted() */
192 #define ITEM_DELETED (1<<17) /* used by log_formatted() */
193 #define ITEM_MATCHED (1<<18) /* used by itemize() */
195 #define SIGNIFICANT_ITEM_FLAGS (~(\
196 ITEM_BASIS_TYPE_FOLLOWS | ITEM_XNAME_FOLLOWS | ITEM_LOCAL_CHANGE))
198 #define CFN_KEEP_DOT_DIRS (1<<0)
199 #define CFN_KEEP_TRAILING_SLASH (1<<1)
200 #define CFN_DROP_TRAILING_DOT_DIR (1<<2)
201 #define CFN_COLLAPSE_DOT_DOT_DIRS (1<<3)
204 #define SP_KEEP_DOT_DIRS (1<<0)
207 #define CD_SKIP_CHDIR 1
209 /* Log-message categories. FLOG only goes to the log file, not the client;
210 * FCLIENT is the opposite. */
212 FNONE=0, /* never sent */
213 FERROR_XFER=1, FINFO=2, /* sent over socket for any protocol */
214 FERROR=3, FWARNING=4, /* sent over socket for protocols >= 30 */
215 FERROR_SOCKET=5, FLOG=6, /* only sent via receiver -> generator pipe */
216 FERROR_UTF8=8, /* only sent via receiver -> generator pipe */
217 FCLIENT=7 /* never transmitted (e.g. server converts to FINFO) */
220 /* Messages types that are sent over the message channel. The logcode
221 * values must all be present here with identical numbers. */
223 MSG_DATA=0, /* raw data on the multiplexed stream */
224 MSG_ERROR_XFER=FERROR_XFER, MSG_INFO=FINFO, /* remote logging */
225 MSG_ERROR=FERROR, MSG_WARNING=FWARNING, /* protocol-30 remote logging */
226 MSG_ERROR_SOCKET=FERROR_SOCKET, /* sibling logging */
227 MSG_ERROR_UTF8=FERROR_UTF8, /* sibling logging */
228 MSG_LOG=FLOG, MSG_CLIENT=FCLIENT, /* sibling logging */
229 MSG_REDO=9, /* reprocess indicated flist index */
230 MSG_DEL_STATS=10,/* delete-statistics data follows */
231 MSG_FLIST=20, /* extra file list over sibling socket */
232 MSG_FLIST_EOF=21,/* we've transmitted all the file lists */
233 MSG_IO_ERROR=22,/* the sending side had an I/O error */
234 MSG_NOOP=42, /* a do-nothing message */
235 MSG_SUCCESS=100,/* successfully updated indicated flist index */
236 MSG_DELETED=101,/* successfully deleted a file on receiving side */
237 MSG_NO_SEND=102,/* sender failed to open a file we wanted */
238 MSG_DONE=86 /* current phase is done */
242 #define NDX_FLIST_EOF -2
243 #define NDX_DEL_STATS -2
244 #define NDX_FLIST_OFFSET -101
246 /* For calling delete_item() and delete_dir_contents(). */
247 #define DEL_NO_UID_WRITE (1<<0) /* file/dir has our uid w/o write perm */
248 #define DEL_RECURSE (1<<1) /* if dir, delete all contents */
249 #define DEL_DIR_IS_EMPTY (1<<2) /* internal delete_FUNCTIONS use only */
250 #define DEL_FOR_FILE (1<<3) /* making room for a replacement file */
251 #define DEL_FOR_DIR (1<<4) /* making room for a replacement dir */
252 #define DEL_FOR_SYMLINK (1<<5) /* making room for a replacement symlink */
253 #define DEL_FOR_DEVICE (1<<6) /* making room for a replacement device */
254 #define DEL_FOR_SPECIAL (1<<7) /* making room for a replacement special */
255 #define DEL_FOR_BACKUP (1<<8) /* the delete is for a backup operation */
257 #define DEL_MAKE_ROOM (DEL_FOR_FILE|DEL_FOR_DIR|DEL_FOR_SYMLINK|DEL_FOR_DEVICE|DEL_FOR_SPECIAL)
260 DR_SUCCESS = 0, DR_FAILURE, DR_AT_LIMIT, DR_NOT_EMPTY
263 /* Defines for make_path() */
264 #define MKP_DROP_NAME (1<<0) /* drop trailing filename or trailing slash */
265 #define MKP_SKIP_SLASH (1<<1) /* skip one or more leading slashes */
271 /* The default RSYNC_RSH is always set in config.h. */
274 #ifdef HAVE_SYS_TYPES_H
275 # include <sys/types.h>
277 #ifdef HAVE_SYS_STAT_H
278 # include <sys/stat.h>
284 # ifdef HAVE_STDLIB_H
289 # if !defined STDC_HEADERS && defined HAVE_MEMORY_H
294 #ifdef HAVE_STRINGS_H
295 # include <strings.h>
297 #ifdef HAVE_INTTYPES_H
298 # include <inttypes.h>
307 #ifdef HAVE_SYS_PARAM_H
308 #include <sys/param.h>
311 #if defined HAVE_MALLOC_H && (defined HAVE_MALLINFO || !defined HAVE_STDLIB_H)
315 #ifdef HAVE_SYS_SOCKET_H
316 #include <sys/socket.h>
319 #ifdef TIME_WITH_SYS_TIME
320 #include <sys/time.h>
323 #ifdef HAVE_SYS_TIME_H
324 #include <sys/time.h>
333 #ifdef HAVE_SYS_FCNTL_H
334 #include <sys/fcntl.h>
338 #ifdef HAVE_SYS_IOCTL_H
339 #include <sys/ioctl.h>
342 #ifdef HAVE_SYS_FILIO_H
343 #include <sys/filio.h>
347 #ifdef HAVE_SYS_WAIT_H
348 #include <sys/wait.h>
363 #define CAN_SET_SYMLINK_TIMES 1
366 #ifdef HAVE_SYS_SELECT_H
367 #include <sys/select.h>
370 #ifdef HAVE_SYS_MODE_H
371 /* apparently AIX needs this for S_ISLNK */
373 #include <sys/mode.h>
377 /* these are needed for the uid/gid mapping code */
382 #include <netinet/in.h>
383 #include <arpa/inet.h>
388 #include <sys/file.h>
393 # define dirent direct
394 # ifdef HAVE_SYS_NDIR_H
395 # include <sys/ndir.h>
397 # ifdef HAVE_SYS_DIR_H
398 # include <sys/dir.h>
405 #ifdef MAJOR_IN_MKDEV
406 #include <sys/mkdev.h>
407 # if !defined makedev && (defined mkdev || defined _WIN32 || defined __WIN32__)
408 # define makedev mkdev
410 #elif defined MAJOR_IN_SYSMACROS
411 #include <sys/sysmacros.h>
414 #ifdef MAKEDEV_TAKES_3_ARGS
415 #define MAKEDEV(devmajor,devminor) makedev(0,devmajor,devminor)
417 #define MAKEDEV(devmajor,devminor) makedev(devmajor,devminor)
428 #if defined USE_ICONV_OPEN && defined HAVE_ICONV_H
448 #include "lib/pool_alloc.h"
451 typedef unsigned int id_t;
457 typedef unsigned int mode_t;
463 typedef unsigned int size_t;
469 #define uchar unsigned char
472 #ifdef SIGNED_CHAR_OK
473 #define schar signed char
479 #if SIZEOF_INT16_T == 2
480 # define int16 int16_t
487 #if SIZEOF_UINT16_T == 2
488 # define uint16 uint16_t
490 # define uint16 unsigned int16
494 /* Find a variable that is either exactly 32-bits or longer.
495 * If some code depends on 32-bit truncation, it will need to
496 * take special action in a "#if SIZEOF_INT32 > 4" section. */
498 #if SIZEOF_INT32_T == 4
499 # define int32 int32_t
500 # define SIZEOF_INT32 4
501 #elif SIZEOF_INT == 4
503 # define SIZEOF_INT32 4
504 #elif SIZEOF_LONG == 4
506 # define SIZEOF_INT32 4
507 #elif SIZEOF_SHORT == 4
509 # define SIZEOF_INT32 4
512 # define SIZEOF_INT32 SIZEOF_INT
513 #elif SIZEOF_LONG > 4
515 # define SIZEOF_INT32 SIZEOF_LONG
517 # error Could not find a 32-bit integer variable
520 # define SIZEOF_INT32 4
524 #if SIZEOF_UINT32_T == 4
525 # define uint32 uint32_t
527 # define uint32 unsigned int32
531 #if SIZEOF_OFF_T == 8 || !SIZEOF_OFF64_T || !defined HAVE_STRUCT_STAT64
533 #define STRUCT_STAT struct stat
534 #define SIZEOF_CAPITAL_OFF_T SIZEOF_OFF_T
536 #define OFF_T off64_t
537 #define STRUCT_STAT struct stat64
538 #define USE_STAT64_FUNCS 1
539 #define SIZEOF_CAPITAL_OFF_T SIZEOF_OFF64_T
542 /* CAVEAT: on some systems, int64 will really be a 32-bit integer IFF
543 * that's the maximum size the file system can handle and there is no
544 * 64-bit type available. The rsync source must therefore take steps
545 * to ensure that any code that really requires a 64-bit integer has
546 * it (e.g. the checksum code uses two 32-bit integers for its 64-bit
548 #if SIZEOF_INT64_T == 8
549 # define int64 int64_t
550 # define SIZEOF_INT64 8
551 #elif SIZEOF_LONG == 8
553 # define SIZEOF_INT64 8
554 #elif SIZEOF_INT == 8
556 # define SIZEOF_INT64 8
557 #elif SIZEOF_LONG_LONG == 8
558 # define int64 long long
559 # define SIZEOF_INT64 8
560 #elif SIZEOF_OFF64_T == 8
561 # define int64 off64_t
562 # define SIZEOF_INT64 8
563 #elif SIZEOF_OFF_T == 8
565 # define SIZEOF_INT64 8
568 # define SIZEOF_INT64 SIZEOF_INT
569 #elif SIZEOF_LONG > 8
571 # define SIZEOF_INT64 SIZEOF_LONG
572 #elif SIZEOF_LONG_LONG > 8
573 # define int64 long long
574 # define SIZEOF_INT64 SIZEOF_LONG_LONG
576 /* As long as it gets... */
578 # define SIZEOF_INT64 SIZEOF_OFF_T
588 struct ht_int32_node {
593 struct ht_int64_node {
598 #define HT_NODE(tbl, bkts, i) ((void*)((char*)(bkts) + (i)*(tbl)->node_size))
599 #define HT_KEY(node, k64) ((k64)? ((struct ht_int64_node*)(node))->key \
600 : (int64)((struct ht_int32_node*)(node))->key)
603 #define MIN(a,b) ((a)<(b)?(a):(b))
607 #define MAX(a,b) ((a)>(b)?(a):(b))
610 #ifndef MAXHOSTNAMELEN
611 #define MAXHOSTNAMELEN 256
614 #define SUM_LENGTH 16
615 #define SHORT_SUM_LENGTH 2
616 #define BLOCKSUM_BIAS 10
619 #define MAXPATHLEN 1024
622 /* We want a roomy line buffer that can hold more than MAXPATHLEN,
623 * and significantly more than an overly short MAXPATHLEN. */
624 #if MAXPATHLEN < 4096
625 #define BIGPATHBUFLEN (4096+1024)
627 #define BIGPATHBUFLEN (MAXPATHLEN+1024)
635 #define INADDR_NONE 0xffffffff
638 #ifndef IN_LOOPBACKNET
639 #define IN_LOOPBACKNET 127
642 #if HAVE_UNIXWARE_ACLS|HAVE_SOLARIS_ACLS|HAVE_HPUX_ACLS
643 #define ACLS_NEED_MASK 1
652 const char *dirname; /* The dir info inside the transfer */
653 time_t modtime; /* When the item was last modified */
654 uint32 len32; /* Lowest 32 bits of the file's length */
655 uint16 mode; /* The item's type and permissions */
656 uint16 flags; /* The FLAG_* bits for this item */
657 const char basename[1]; /* The basename (AKA filename) follows */
660 extern int file_extra_cnt;
661 extern int inc_recurse;
665 extern int xattrs_ndx;
667 #define FILE_STRUCT_LEN (offsetof(struct file_struct, basename))
668 #define EXTRA_LEN (sizeof (union file_extras))
669 #define PTR_EXTRA_CNT ((sizeof (char *) + EXTRA_LEN - 1) / EXTRA_LEN)
670 #define DEV_EXTRA_CNT 2
671 #define DIRNODE_EXTRA_CNT 3
672 #define SUM_EXTRA_CNT ((MAX_DIGEST_LEN + EXTRA_LEN - 1) / EXTRA_LEN)
674 #define REQ_EXTRA(f,ndx) ((union file_extras*)(f) - (ndx))
675 #define OPT_EXTRA(f,bump) ((union file_extras*)(f) - file_extra_cnt - 1 - (bump))
677 #define LEN64_BUMP(f) ((f)->flags & FLAG_LENGTH64 ? 1 : 0)
678 #define HLINK_BUMP(f) ((f)->flags & (FLAG_HLINKED|FLAG_HLINK_DONE) ? inc_recurse+1 : 0)
679 #define ACL_BUMP(f) (acls_ndx ? 1 : 0)
681 /* The length applies to all items. */
683 #define F_LENGTH(f) ((int64)(f)->len32)
685 #define F_LENGTH(f) ((int64)(f)->len32 + ((f)->flags & FLAG_LENGTH64 \
686 ? (int64)OPT_EXTRA(f, 0)->unum << 32 : 0))
689 /* If there is a symlink string, it is always right after the basename */
690 #define F_SYMLINK(f) ((f)->basename + strlen((f)->basename) + 1)
692 /* The sending side always has this available: */
693 #define F_PATHNAME(f) (*(const char**)REQ_EXTRA(f, PTR_EXTRA_CNT))
695 /* The receiving side always has this available: */
696 #define F_DEPTH(f) REQ_EXTRA(f, 1)->num
698 /* When the associated option is on, all entries will have these present: */
699 #define F_OWNER(f) REQ_EXTRA(f, uid_ndx)->unum
700 #define F_GROUP(f) REQ_EXTRA(f, gid_ndx)->unum
701 #define F_ACL(f) REQ_EXTRA(f, acls_ndx)->num
702 #define F_XATTR(f) REQ_EXTRA(f, xattrs_ndx)->num
703 #define F_NDX(f) REQ_EXTRA(f, unsort_ndx)->num
705 /* These items are per-entry optional: */
706 #define F_HL_GNUM(f) OPT_EXTRA(f, LEN64_BUMP(f))->num /* non-dirs */
707 #define F_HL_PREV(f) OPT_EXTRA(f, LEN64_BUMP(f)+inc_recurse)->num /* non-dirs */
708 #define F_DIR_NODE_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) \
709 + DIRNODE_EXTRA_CNT - 1)->num) /* sender dirs */
710 #define F_DIR_RELNAMES_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) + DIRNODE_EXTRA_CNT \
711 + PTR_EXTRA_CNT - 1)->num) /* sender dirs */
712 #define F_DIR_DEFACL(f) OPT_EXTRA(f, LEN64_BUMP(f))->unum /* receiver dirs */
713 #define F_DIR_DEV_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) + ACL_BUMP(f) \
714 + DEV_EXTRA_CNT - 1)->unum) /* receiver dirs */
716 /* This optional item might follow an F_HL_*() item.
717 * (Note: a device doesn't need to check LEN64_BUMP(f).) */
718 #define F_RDEV_P(f) (&OPT_EXTRA(f, HLINK_BUMP(f) + DEV_EXTRA_CNT - 1)->unum)
720 /* The sum is only present on regular files. */
721 #define F_SUM(f) ((char*)OPT_EXTRA(f, LEN64_BUMP(f) + HLINK_BUMP(f) \
722 + SUM_EXTRA_CNT - 1))
724 /* Some utility defines: */
725 #define F_IS_ACTIVE(f) (f)->basename[0]
726 #define F_IS_HLINKED(f) ((f)->flags & FLAG_HLINKED)
728 #define F_HLINK_NOT_FIRST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_FIRST)
729 #define F_HLINK_NOT_LAST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_LAST)
731 /* These access the F_DIR_DEV_P() and F_RDEV_P() values: */
732 #define DEV_MAJOR(a) (a)[0]
733 #define DEV_MINOR(a) (a)[1]
735 /* These access the F_DIRS_NODE_P() values: */
736 #define DIR_PARENT(a) (a)[0]
737 #define DIR_FIRST_CHILD(a) (a)[1]
738 #define DIR_NEXT_SIBLING(a) (a)[2]
741 * Start the flist array at FLIST_START entries and grow it
742 * by doubling until FLIST_LINEAR then grow by FLIST_LINEAR
744 #define FLIST_START (32 * 1024)
745 #define FLIST_LINEAR (FLIST_START * 512)
748 * Extent size for allocation pools: A minimum size of 128KB
749 * is needed to mmap them so that freeing will release the
752 * Larger sizes reduce leftover fragments and speed free calls
753 * (when they happen). Smaller sizes increase the chance of
754 * freed allocations freeing whole extents.
756 #define NORMAL_EXTENT (256 * 1024)
757 #define SMALL_EXTENT (128 * 1024)
759 #define FLIST_TEMP (1<<1)
762 struct file_list *next, *prev;
763 struct file_struct **files, **sorted;
764 alloc_pool_t file_pool;
767 int low, high; /* 0-relative index values excluding empties */
768 int ndx_start; /* the start offset for inc_recurse mode */
769 int flist_num; /* 1-relative file_list number or 0 */
770 int parent_ndx; /* dir_flist index of parent directory */
771 int in_progress, to_redo;
774 #define SUMFLG_SAME_OFFSET (1<<0)
777 OFF_T offset; /**< offset in file of this chunk */
778 int32 len; /**< length of chunk of file */
779 uint32 sum1; /**< simple checksum */
780 int32 chain; /**< next hash-table collision */
781 short flags; /**< flag bits */
782 char sum2[SUM_LENGTH]; /**< checksum */
786 OFF_T flength; /**< total file length */
787 struct sum_buf *sums; /**< points to info for each chunk */
788 int32 count; /**< how many chunks */
789 int32 blength; /**< block_length */
790 int32 remainder; /**< flength % block_length */
791 int s2length; /**< sum2_length */
795 OFF_T file_size; /* File size (from stat) */
796 OFF_T p_offset; /* Window start */
797 OFF_T p_fd_offset; /* offset of cursor in fd ala lseek */
798 char *p; /* Window pointer */
799 int32 p_size; /* Largest window size we allocated */
800 int32 p_len; /* Latest (rounded) window size */
801 int32 def_window_size; /* Default window size */
802 int fd; /* File Descriptor */
803 int status; /* first errno from read errors */
806 #define FILTRULE_WILD (1<<0) /* pattern has '*', '[', and/or '?' */
807 #define FILTRULE_WILD2 (1<<1) /* pattern has '**' */
808 #define FILTRULE_WILD2_PREFIX (1<<2) /* pattern starts with "**" */
809 #define FILTRULE_WILD3_SUFFIX (1<<3) /* pattern ends with "***" */
810 #define FILTRULE_ABS_PATH (1<<4) /* path-match on absolute path */
811 #define FILTRULE_INCLUDE (1<<5) /* this is an include, not an exclude */
812 #define FILTRULE_DIRECTORY (1<<6) /* this matches only directories */
813 #define FILTRULE_WORD_SPLIT (1<<7) /* split rules on whitespace */
814 #define FILTRULE_NO_INHERIT (1<<8) /* don't inherit these rules */
815 #define FILTRULE_NO_PREFIXES (1<<9) /* parse no prefixes from patterns */
816 #define FILTRULE_MERGE_FILE (1<<10)/* specifies a file to merge */
817 #define FILTRULE_PERDIR_MERGE (1<<11)/* merge-file is searched per-dir */
818 #define FILTRULE_EXCLUDE_SELF (1<<12)/* merge-file name should be excluded */
819 #define FILTRULE_FINISH_SETUP (1<<13)/* per-dir merge file needs setup */
820 #define FILTRULE_NEGATE (1<<14)/* rule matches when pattern does not */
821 #define FILTRULE_CVS_IGNORE (1<<15)/* rule was -C or :C */
822 #define FILTRULE_SENDER_SIDE (1<<16)/* rule applies to the sending side */
823 #define FILTRULE_RECEIVER_SIDE (1<<17)/* rule applies to the receiving side */
824 #define FILTRULE_CLEAR_LIST (1<<18)/* this item is the "!" token */
825 #define FILTRULE_PERISHABLE (1<<19)/* perishable if parent dir goes away */
827 #define FILTRULES_SIDES (FILTRULE_SENDER_SIDE | FILTRULE_RECEIVER_SIDE)
829 typedef struct filter_struct {
830 struct filter_struct *next;
835 struct filter_list_struct *mergelist;
839 typedef struct filter_list_struct {
842 filter_rule *parent_dirscan_head;
848 int64 total_transferred_size;
853 int64 flist_buildtime;
854 int64 flist_xfertime;
856 int num_files, num_dirs, num_symlinks, num_devices, num_specials;
857 int created_files, created_dirs, created_symlinks, created_devices, created_specials;
858 int deleted_files, deleted_dirs, deleted_symlinks, deleted_devices, deleted_specials;
862 struct chmod_mode_struct;
864 struct flist_ndx_item {
865 struct flist_ndx_item *next;
870 struct flist_ndx_item *head, *tail;
873 #define EMPTY_ITEM_LIST {NULL, 0, 0}
881 #define EXPAND_ITEM_LIST(lp, type, incr) \
882 (type*)expand_item_list(lp, sizeof (type), #type, incr)
884 #define EMPTY_XBUF {NULL, 0, 0, 0}
888 size_t pos; /* pos = read pos in the buf */
889 size_t len; /* len = chars following pos */
890 size_t size; /* size = total space in buf */
893 #define INIT_XBUF(xb, str, ln, sz) (xb).buf = (str), (xb).len = (ln), (xb).size = (sz), (xb).pos = 0
894 #define INIT_XBUF_STRLEN(xb, str) (xb).buf = (str), (xb).len = strlen((xb).buf), (xb).size = (size_t)-1, (xb).pos = 0
895 /* This one is used to make an output xbuf based on a char[] buffer: */
896 #define INIT_CONST_XBUF(xb, bf) (xb).buf = (bf), (xb).size = sizeof (bf), (xb).len = (xb).pos = 0
898 #define ICB_EXPAND_OUT (1<<0)
899 #define ICB_INCLUDE_BAD (1<<1)
900 #define ICB_INCLUDE_INCOMPLETE (1<<2)
902 #define RL_EOL_NULLS (1<<0)
903 #define RL_DUMP_COMMENTS (1<<1)
904 #define RL_CONVERT (1<<2)
908 char fname[1]; /* has variable size */
911 #include "byteorder.h"
912 #include "lib/mdigest.h"
913 #include "lib/wildmatch.h"
914 #include "lib/permstring.h"
915 #include "lib/addrinfo.h"
918 #define __attribute__(x)
925 #define UNUSED(x) x __attribute__((__unused__))
927 #define NORETURN __attribute__((__noreturn__))
933 struct rsync_acl *acc_acl; /* access ACL */
934 struct rsync_acl *def_acl; /* default ACL */
936 #ifdef SUPPORT_XATTRS
941 #define ACL_READY(sx) ((sx).acc_acl != NULL)
942 #define XATTR_READY(sx) ((sx).xattr != NULL)
946 #ifndef SUPPORT_XATTRS
947 #define x_stat(fn,fst,xst) do_stat(fn,fst)
948 #define x_lstat(fn,fst,xst) do_lstat(fn,fst)
949 #define x_fstat(fd,fst,xst) do_fstat(fd,fst)
952 /* We have replacement versions of these if they're missing. */
953 #ifndef HAVE_ASPRINTF
954 int asprintf(char **ptr, const char *format, ...);
957 #ifndef HAVE_VASPRINTF
958 int vasprintf(char **ptr, const char *format, va_list ap);
961 #if !defined HAVE_VSNPRINTF || !defined HAVE_C99_VSNPRINTF
962 #define vsnprintf rsync_vsnprintf
963 int vsnprintf(char *str, size_t count, const char *fmt, va_list args);
966 #if !defined HAVE_SNPRINTF || !defined HAVE_C99_VSNPRINTF
967 #define snprintf rsync_snprintf
968 int snprintf(char *str, size_t count, const char *fmt,...);
972 #ifndef HAVE_STRERROR
973 extern char *sys_errlist[];
974 #define strerror(i) sys_errlist[i]
978 # define strchr index
979 # define strrchr rindex
982 #ifndef HAVE_ERRNO_DECL
987 #define SUPPORT_LINKS 1
988 #ifndef NO_SYMLINK_XATTRS
989 #define do_readlink(path, buf, bufsiz) readlink(path, buf, bufsiz)
993 #define SUPPORT_HARD_LINKS 1
996 #ifdef HAVE_SIGACTION
997 #define SIGACTION(n,h) sigact.sa_handler=(h), sigaction((n),&sigact,NULL)
998 #define signal(n,h) we_need_to_call_SIGACTION_not_signal(n,h)
1000 #define SIGACTION(n,h) signal(n,h)
1004 #define EWOULDBLOCK EAGAIN
1007 #ifndef STDIN_FILENO
1008 #define STDIN_FILENO 0
1011 #ifndef STDOUT_FILENO
1012 #define STDOUT_FILENO 1
1015 #ifndef STDERR_FILENO
1016 #define STDERR_FILENO 2
1020 #define S_IRUSR 0400
1024 #define S_IWUSR 0200
1028 #define ACCESSPERMS 0777
1035 #define CHMOD_BITS (S_ISUID | S_ISGID | S_ISVTX | ACCESSPERMS)
1038 #define _S_IFMT 0170000
1042 #define _S_IFLNK 0120000
1046 #define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK))
1050 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
1054 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
1059 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
1061 #define S_ISSOCK(mode) (0)
1067 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
1069 #define S_ISFIFO(mode) (0)
1074 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
1078 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
1081 /* work out what fcntl flag to use for non-blocking */
1083 # define NONBLOCK_FLAG O_NONBLOCK
1085 # define NONBLOCK_FLAG O_NDELAY
1087 # define NONBLOCK_FLAG FNDELAY
1090 #ifndef INADDR_LOOPBACK
1091 #define INADDR_LOOPBACK 0x7f000001
1095 #define INADDR_NONE 0xffffffff
1098 #define IS_SPECIAL(mode) (S_ISSOCK(mode) || S_ISFIFO(mode))
1099 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode))
1101 /* Initial mask on permissions given to temporary files. Mask off setuid
1102 bits and group access because of potential race-condition security
1103 holes, and mask other access because mode 707 is bizarre */
1104 #define INITACCESSPERMS 0700
1106 /* handler for null strings in printf format */
1107 #define NS(s) ((s)?(s):"<NULL>")
1109 /* Convenient wrappers for malloc and realloc. Use them. */
1110 #define new(type) ((type*)malloc(sizeof (type)))
1111 #define new0(type) ((type*)calloc(1, sizeof (type)))
1112 #define new_array(type, num) ((type*)_new_array((num), sizeof (type), 0))
1113 #define new_array0(type, num) ((type*)_new_array((num), sizeof (type), 1))
1114 #define realloc_array(ptr, type, num) ((type*)_realloc_array((ptr), sizeof(type), (num)))
1116 /* use magic gcc attributes to catch format errors */
1117 void rprintf(enum logcode , const char *, ...)
1118 __attribute__((format (printf, 2, 3)))
1121 /* This is just like rprintf, but it also tries to print some
1122 * representation of the error code. Normally errcode = errno. */
1123 void rsyserr(enum logcode, int, const char *, ...)
1124 __attribute__((format (printf, 3, 4)))
1127 /* Make sure that the O_BINARY flag is defined. */
1132 #ifndef HAVE_STRLCPY
1133 size_t strlcpy(char *d, const char *s, size_t bufsize);
1136 #ifndef HAVE_STRLCAT
1137 size_t strlcat(char *d, const char *s, size_t bufsize);
1141 #define WEXITSTATUS(stat) ((int)(((stat)>>8)&0xFF))
1144 #define WIFEXITED(stat) ((int)((stat)&0xFF) == 0)
1147 #define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__)
1150 #define MY_UID() geteuid()
1152 #define MY_UID() getuid()
1156 #define MY_GID() getegid()
1158 #define MY_GID() getgid()
1161 #ifdef FORCE_FD_ZERO_MEMSET
1163 #define FD_ZERO(fdsetp) memset(fdsetp, 0, sizeof (fd_set))
1166 extern short info_levels[], debug_levels[];
1168 #define INFO_GTE(flag, lvl) (info_levels[INFO_##flag] >= (lvl))
1169 #define INFO_EQ(flag, lvl) (info_levels[INFO_##flag] == (lvl))
1170 #define DEBUG_GTE(flag, lvl) (debug_levels[DEBUG_##flag] >= (lvl))
1171 #define DEBUG_EQ(flag, lvl) (debug_levels[DEBUG_##flag] == (lvl))
1173 #define INFO_BACKUP 0
1174 #define INFO_COPY (INFO_BACKUP+1)
1175 #define INFO_DEL (INFO_COPY+1)
1176 #define INFO_FLIST (INFO_DEL+1)
1177 #define INFO_MISC (INFO_FLIST+1)
1178 #define INFO_MOUNT (INFO_MISC+1)
1179 #define INFO_NAME (INFO_MOUNT+1)
1180 #define INFO_PROGRESS (INFO_NAME+1)
1181 #define INFO_REMOVE (INFO_PROGRESS+1)
1182 #define INFO_SKIP (INFO_REMOVE+1)
1183 #define INFO_STATS (INFO_SKIP+1)
1184 #define INFO_SYMSAFE (INFO_STATS+1)
1186 #define COUNT_INFO (INFO_SYMSAFE+1)
1189 #define DEBUG_BACKUP (DEBUG_ACL+1)
1190 #define DEBUG_BIND (DEBUG_BACKUP+1)
1191 #define DEBUG_CHDIR (DEBUG_BIND+1)
1192 #define DEBUG_CONNECT (DEBUG_CHDIR+1)
1193 #define DEBUG_CMD (DEBUG_CONNECT+1)
1194 #define DEBUG_DEL (DEBUG_CMD+1)
1195 #define DEBUG_DELTASUM (DEBUG_DEL+1)
1196 #define DEBUG_DUP (DEBUG_DELTASUM+1)
1197 #define DEBUG_EXIT (DEBUG_DUP+1)
1198 #define DEBUG_FILTER (DEBUG_EXIT+1)
1199 #define DEBUG_FLIST (DEBUG_FILTER+1)
1200 #define DEBUG_FUZZY (DEBUG_FLIST+1)
1201 #define DEBUG_GENR (DEBUG_FUZZY+1)
1202 #define DEBUG_HASH (DEBUG_GENR+1)
1203 #define DEBUG_HLINK (DEBUG_HASH+1)
1204 #define DEBUG_ICONV (DEBUG_HLINK+1)
1205 #define DEBUG_OWN (DEBUG_ICONV+1)
1206 #define DEBUG_PROTO (DEBUG_OWN+1)
1207 #define DEBUG_RECV (DEBUG_PROTO+1)
1208 #define DEBUG_SEND (DEBUG_RECV+1)
1209 #define DEBUG_TIME (DEBUG_SEND+1)
1211 #define COUNT_DEBUG (DEBUG_TIME+1)
1213 #ifndef HAVE_INET_NTOP
1214 const char *inet_ntop(int af, const void *src, char *dst, size_t size);
1217 #ifndef HAVE_INET_PTON
1218 int inet_pton(int af, const char *src, void *dst);
1221 #ifdef MAINTAINER_MODE
1222 const char *get_panic_action(void);