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 FILECNT_LOOKAHEAD 1000
124 #define RSYNC_PORT 873
126 #define SPARSE_WRITE_SIZE (1024)
127 #define WRITE_SIZE (32*1024)
128 #define CHUNK_SIZE (32*1024)
129 #define MAX_MAP_SIZE (256*1024)
130 #define IO_BUFFER_SIZE (4092)
131 #define MAX_BLOCK_SIZE ((int32)1 << 17)
133 /* For compatibility with older rsyncs */
134 #define OLD_MAX_BLOCK_SIZE ((int32)1 << 29)
136 #define IOERR_GENERAL (1<<0) /* For backward compatibility, this must == 1 */
137 #define IOERR_VANISHED (1<<1)
138 #define IOERR_DEL_LIMIT (1<<2)
140 #define MAX_ARGS 1000
141 #define MAX_BASIS_DIRS 20
142 #define MAX_SERVER_ARGS (MAX_BASIS_DIRS*2 + 100)
147 #define SERVER_FILTERS 1
148 #define ALL_FILTERS 2
149 /* Don't let the file be excluded, but check for a filter that might affect
150 * its attributes via MATCHFLGS_ATTRS. */
151 #define ALL_FILTERS_NO_EXCLUDE 3
153 #define XFLG_FATAL_ERRORS (1<<0)
154 #define XFLG_OLD_PREFIXES (1<<1)
155 #define XFLG_ANCHORED2ABS (1<<2) /* leading slash indicates absolute */
156 #define XFLG_ABS_IF_SLASH (1<<3) /* leading or interior slash is absolute */
157 #define XFLG_DIR2WILD3 (1<<4) /* dir/ match gets trailing *** added */
159 #define ATTRS_REPORT (1<<0)
160 #define ATTRS_SKIP_MTIME (1<<1)
163 #define NORMAL_FLUSH 0
165 #define PDIR_CREATE 1
166 #define PDIR_DELETE 0
168 /* Note: 0x00 - 0x7F are used for basis_dir[] indexes! */
169 #define FNAMECMP_BASIS_DIR_LOW 0x00 /* Must remain 0! */
170 #define FNAMECMP_BASIS_DIR_HIGH 0x7F
171 #define FNAMECMP_FNAME 0x80
172 #define FNAMECMP_PARTIAL_DIR 0x81
173 #define FNAMECMP_BACKUP 0x82
174 #define FNAMECMP_FUZZY 0x83
176 /* For use by the itemize_changes code */
177 #define ITEM_REPORT_ATIME (1<<0)
178 #define ITEM_REPORT_CHANGE (1<<1)
179 #define ITEM_REPORT_SIZE (1<<2) /* regular files only */
180 #define ITEM_REPORT_TIMEFAIL (1<<2) /* symlinks only */
181 #define ITEM_REPORT_TIME (1<<3)
182 #define ITEM_REPORT_PERMS (1<<4)
183 #define ITEM_REPORT_OWNER (1<<5)
184 #define ITEM_REPORT_GROUP (1<<6)
185 #define ITEM_REPORT_ACL (1<<7)
186 #define ITEM_REPORT_XATTR (1<<8)
187 #define ITEM_BASIS_TYPE_FOLLOWS (1<<11)
188 #define ITEM_XNAME_FOLLOWS (1<<12)
189 #define ITEM_IS_NEW (1<<13)
190 #define ITEM_LOCAL_CHANGE (1<<14)
191 #define ITEM_TRANSFER (1<<15)
192 /* These are outside the range of the transmitted flags. */
193 #define ITEM_MISSING_DATA (1<<16) /* used by log_formatted() */
194 #define ITEM_DELETED (1<<17) /* used by log_formatted() */
195 #define ITEM_MATCHED (1<<18) /* used by itemize() */
197 #define SIGNIFICANT_ITEM_FLAGS (~(\
198 ITEM_BASIS_TYPE_FOLLOWS | ITEM_XNAME_FOLLOWS | ITEM_LOCAL_CHANGE))
200 #define CFN_KEEP_DOT_DIRS (1<<0)
201 #define CFN_KEEP_TRAILING_SLASH (1<<1)
202 #define CFN_DROP_TRAILING_DOT_DIR (1<<2)
203 #define CFN_COLLAPSE_DOT_DOT_DIRS (1<<3)
206 #define SP_KEEP_DOT_DIRS (1<<0)
209 #define CD_SKIP_CHDIR 1
211 /* Log-message categories. FLOG only goes to the log file, not the client;
212 * FCLIENT is the opposite. */
214 FNONE=0, /* never sent */
215 FERROR_XFER=1, FINFO=2, /* sent over socket for any protocol */
216 FERROR=3, FWARNING=4, /* sent over socket for protocols >= 30 */
217 FERROR_SOCKET=5, FLOG=6, /* only sent via receiver -> generator pipe */
218 FERROR_UTF8=8, /* only sent via receiver -> generator pipe */
219 FCLIENT=7 /* never transmitted (e.g. server converts to FINFO) */
222 /* Messages types that are sent over the message channel. The logcode
223 * values must all be present here with identical numbers. */
225 MSG_DATA=0, /* raw data on the multiplexed stream */
226 MSG_ERROR_XFER=FERROR_XFER, MSG_INFO=FINFO, /* remote logging */
227 MSG_ERROR=FERROR, MSG_WARNING=FWARNING, /* protocol-30 remote logging */
228 MSG_ERROR_SOCKET=FERROR_SOCKET, /* sibling logging */
229 MSG_ERROR_UTF8=FERROR_UTF8, /* sibling logging */
230 MSG_LOG=FLOG, MSG_CLIENT=FCLIENT, /* sibling logging */
231 MSG_REDO=9, /* reprocess indicated flist index */
232 MSG_DEL_STATS=10,/* delete-statistics data follows */
233 MSG_FLIST=20, /* extra file list over sibling socket */
234 MSG_FLIST_EOF=21,/* we've transmitted all the file lists */
235 MSG_IO_ERROR=22,/* the sending side had an I/O error */
236 MSG_NOOP=42, /* a do-nothing message */
237 MSG_SUCCESS=100,/* successfully updated indicated flist index */
238 MSG_DELETED=101,/* successfully deleted a file on receiving side */
239 MSG_NO_SEND=102,/* sender failed to open a file we wanted */
240 MSG_DONE=86 /* current phase is done */
244 #define NDX_FLIST_EOF -2
245 #define NDX_DEL_STATS -2
246 #define NDX_FLIST_OFFSET -101
248 /* For calling delete_item() and delete_dir_contents(). */
249 #define DEL_NO_UID_WRITE (1<<0) /* file/dir has our uid w/o write perm */
250 #define DEL_RECURSE (1<<1) /* if dir, delete all contents */
251 #define DEL_DIR_IS_EMPTY (1<<2) /* internal delete_FUNCTIONS use only */
252 #define DEL_FOR_FILE (1<<3) /* making room for a replacement file */
253 #define DEL_FOR_DIR (1<<4) /* making room for a replacement dir */
254 #define DEL_FOR_SYMLINK (1<<5) /* making room for a replacement symlink */
255 #define DEL_FOR_DEVICE (1<<6) /* making room for a replacement device */
256 #define DEL_FOR_SPECIAL (1<<7) /* making room for a replacement special */
257 #define DEL_FOR_BACKUP (1<<8) /* the delete is for a backup operation */
259 #define DEL_MAKE_ROOM (DEL_FOR_FILE|DEL_FOR_DIR|DEL_FOR_SYMLINK|DEL_FOR_DEVICE|DEL_FOR_SPECIAL)
262 DR_SUCCESS = 0, DR_FAILURE, DR_AT_LIMIT, DR_NOT_EMPTY
265 /* Defines for make_path() */
266 #define MKP_DROP_NAME (1<<0) /* drop trailing filename or trailing slash */
267 #define MKP_SKIP_SLASH (1<<1) /* skip one or more leading slashes */
273 /* The default RSYNC_RSH is always set in config.h. */
276 #ifdef HAVE_SYS_TYPES_H
277 # include <sys/types.h>
279 #ifdef HAVE_SYS_STAT_H
280 # include <sys/stat.h>
286 # ifdef HAVE_STDLIB_H
291 # if !defined STDC_HEADERS && defined HAVE_MEMORY_H
296 #ifdef HAVE_STRINGS_H
297 # include <strings.h>
299 #ifdef HAVE_INTTYPES_H
300 # include <inttypes.h>
309 #ifdef HAVE_SYS_PARAM_H
310 #include <sys/param.h>
313 #if defined HAVE_MALLOC_H && (defined HAVE_MALLINFO || !defined HAVE_STDLIB_H)
317 #ifdef HAVE_SYS_SOCKET_H
318 #include <sys/socket.h>
321 #ifdef TIME_WITH_SYS_TIME
322 #include <sys/time.h>
325 #ifdef HAVE_SYS_TIME_H
326 #include <sys/time.h>
335 #ifdef HAVE_SYS_FCNTL_H
336 #include <sys/fcntl.h>
340 #ifdef HAVE_SYS_IOCTL_H
341 #include <sys/ioctl.h>
344 #ifdef HAVE_SYS_FILIO_H
345 #include <sys/filio.h>
349 #ifdef HAVE_SYS_WAIT_H
350 #include <sys/wait.h>
364 #ifdef HAVE_SYS_SELECT_H
365 #include <sys/select.h>
368 #ifdef HAVE_SYS_MODE_H
369 /* apparently AIX needs this for S_ISLNK */
371 #include <sys/mode.h>
375 /* these are needed for the uid/gid mapping code */
380 #include <netinet/in.h>
381 #include <arpa/inet.h>
386 #include <sys/file.h>
391 # define dirent direct
392 # ifdef HAVE_SYS_NDIR_H
393 # include <sys/ndir.h>
395 # ifdef HAVE_SYS_DIR_H
396 # include <sys/dir.h>
403 #ifdef MAJOR_IN_MKDEV
404 #include <sys/mkdev.h>
405 # if !defined makedev && (defined mkdev || defined _WIN32 || defined __WIN32__)
406 # define makedev mkdev
408 #elif defined MAJOR_IN_SYSMACROS
409 #include <sys/sysmacros.h>
412 #ifdef MAKEDEV_TAKES_3_ARGS
413 #define MAKEDEV(devmajor,devminor) makedev(0,devmajor,devminor)
415 #define MAKEDEV(devmajor,devminor) makedev(devmajor,devminor)
426 #if defined USE_ICONV_OPEN && defined HAVE_ICONV_H
446 #include "lib/pool_alloc.h"
449 typedef unsigned int id_t;
455 typedef unsigned int mode_t;
461 typedef unsigned int size_t;
467 #define uchar unsigned char
470 #ifdef SIGNED_CHAR_OK
471 #define schar signed char
477 #if SIZEOF_INT16_T == 2
478 # define int16 int16_t
485 #if SIZEOF_UINT16_T == 2
486 # define uint16 uint16_t
488 # define uint16 unsigned int16
492 /* Find a variable that is either exactly 32-bits or longer.
493 * If some code depends on 32-bit truncation, it will need to
494 * take special action in a "#if SIZEOF_INT32 > 4" section. */
496 #if SIZEOF_INT32_T == 4
497 # define int32 int32_t
498 # define SIZEOF_INT32 4
499 #elif SIZEOF_INT == 4
501 # define SIZEOF_INT32 4
502 #elif SIZEOF_LONG == 4
504 # define SIZEOF_INT32 4
505 #elif SIZEOF_SHORT == 4
507 # define SIZEOF_INT32 4
510 # define SIZEOF_INT32 SIZEOF_INT
511 #elif SIZEOF_LONG > 4
513 # define SIZEOF_INT32 SIZEOF_LONG
515 # error Could not find a 32-bit integer variable
518 # define SIZEOF_INT32 4
522 #if SIZEOF_UINT32_T == 4
523 # define uint32 uint32_t
525 # define uint32 unsigned int32
529 #if SIZEOF_OFF_T == 8 || !SIZEOF_OFF64_T || !defined HAVE_STRUCT_STAT64
531 #define STRUCT_STAT struct stat
532 #define SIZEOF_CAPITAL_OFF_T SIZEOF_OFF_T
534 #define OFF_T off64_t
535 #define STRUCT_STAT struct stat64
536 #define USE_STAT64_FUNCS 1
537 #define SIZEOF_CAPITAL_OFF_T SIZEOF_OFF64_T
540 /* CAVEAT: on some systems, int64 will really be a 32-bit integer IFF
541 * that's the maximum size the file system can handle and there is no
542 * 64-bit type available. The rsync source must therefore take steps
543 * to ensure that any code that really requires a 64-bit integer has
544 * it (e.g. the checksum code uses two 32-bit integers for its 64-bit
546 #if SIZEOF_INT64_T == 8
547 # define int64 int64_t
548 # define SIZEOF_INT64 8
549 #elif SIZEOF_LONG == 8
551 # define SIZEOF_INT64 8
552 #elif SIZEOF_INT == 8
554 # define SIZEOF_INT64 8
555 #elif SIZEOF_LONG_LONG == 8
556 # define int64 long long
557 # define SIZEOF_INT64 8
558 #elif SIZEOF_OFF64_T == 8
559 # define int64 off64_t
560 # define SIZEOF_INT64 8
561 #elif SIZEOF_OFF_T == 8
563 # define SIZEOF_INT64 8
566 # define SIZEOF_INT64 SIZEOF_INT
567 #elif SIZEOF_LONG > 8
569 # define SIZEOF_INT64 SIZEOF_LONG
570 #elif SIZEOF_LONG_LONG > 8
571 # define int64 long long
572 # define SIZEOF_INT64 SIZEOF_LONG_LONG
574 /* As long as it gets... */
576 # define SIZEOF_INT64 SIZEOF_OFF_T
586 struct ht_int32_node {
591 struct ht_int64_node {
596 #define HT_NODE(tbl, bkts, i) ((void*)((char*)(bkts) + (i)*(tbl)->node_size))
597 #define HT_KEY(node, k64) ((k64)? ((struct ht_int64_node*)(node))->key \
598 : (int64)((struct ht_int32_node*)(node))->key)
601 #define MIN(a,b) ((a)<(b)?(a):(b))
605 #define MAX(a,b) ((a)>(b)?(a):(b))
608 #ifndef MAXHOSTNAMELEN
609 #define MAXHOSTNAMELEN 256
612 #define SUM_LENGTH 16
613 #define SHORT_SUM_LENGTH 2
614 #define BLOCKSUM_BIAS 10
617 #define MAXPATHLEN 1024
620 /* We want a roomy line buffer that can hold more than MAXPATHLEN,
621 * and significantly more than an overly short MAXPATHLEN. */
622 #if MAXPATHLEN < 4096
623 #define BIGPATHBUFLEN (4096+1024)
625 #define BIGPATHBUFLEN (MAXPATHLEN+1024)
633 #define INADDR_NONE 0xffffffff
636 #ifndef IN_LOOPBACKNET
637 #define IN_LOOPBACKNET 127
640 #if HAVE_UNIXWARE_ACLS|HAVE_SOLARIS_ACLS|HAVE_HPUX_ACLS
641 #define ACLS_NEED_MASK 1
650 const char *dirname; /* The dir info inside the transfer */
651 time_t modtime; /* When the item was last modified */
652 uint32 len32; /* Lowest 32 bits of the file's length */
653 uint16 mode; /* The item's type and permissions */
654 uint16 flags; /* The FLAG_* bits for this item */
655 const char basename[1]; /* The basename (AKA filename) follows */
658 extern int file_extra_cnt;
659 extern int inc_recurse;
663 extern int xattrs_ndx;
665 #define FILE_STRUCT_LEN (offsetof(struct file_struct, basename))
666 #define EXTRA_LEN (sizeof (union file_extras))
667 #define PTR_EXTRA_CNT ((sizeof (char *) + EXTRA_LEN - 1) / EXTRA_LEN)
668 #define DEV_EXTRA_CNT 2
669 #define DIRNODE_EXTRA_CNT 3
670 #define SUM_EXTRA_CNT ((MAX_DIGEST_LEN + EXTRA_LEN - 1) / EXTRA_LEN)
672 #define REQ_EXTRA(f,ndx) ((union file_extras*)(f) - (ndx))
673 #define OPT_EXTRA(f,bump) ((union file_extras*)(f) - file_extra_cnt - 1 - (bump))
675 #define LEN64_BUMP(f) ((f)->flags & FLAG_LENGTH64 ? 1 : 0)
676 #define HLINK_BUMP(f) ((f)->flags & (FLAG_HLINKED|FLAG_HLINK_DONE) ? inc_recurse+1 : 0)
677 #define ACL_BUMP(f) (acls_ndx ? 1 : 0)
679 /* The length applies to all items. */
681 #define F_LENGTH(f) ((int64)(f)->len32)
683 #define F_LENGTH(f) ((int64)(f)->len32 + ((f)->flags & FLAG_LENGTH64 \
684 ? (int64)OPT_EXTRA(f, 0)->unum << 32 : 0))
687 /* If there is a symlink string, it is always right after the basename */
688 #define F_SYMLINK(f) ((f)->basename + strlen((f)->basename) + 1)
690 /* The sending side always has this available: */
691 #define F_PATHNAME(f) (*(const char**)REQ_EXTRA(f, PTR_EXTRA_CNT))
693 /* The receiving side always has this available: */
694 #define F_DEPTH(f) REQ_EXTRA(f, 1)->num
696 /* When the associated option is on, all entries will have these present: */
697 #define F_OWNER(f) REQ_EXTRA(f, uid_ndx)->unum
698 #define F_GROUP(f) REQ_EXTRA(f, gid_ndx)->unum
699 #define F_ACL(f) REQ_EXTRA(f, acls_ndx)->num
700 #define F_XATTR(f) REQ_EXTRA(f, xattrs_ndx)->num
701 #define F_NDX(f) REQ_EXTRA(f, unsort_ndx)->num
703 /* These items are per-entry optional: */
704 #define F_HL_GNUM(f) OPT_EXTRA(f, LEN64_BUMP(f))->num /* non-dirs */
705 #define F_HL_PREV(f) OPT_EXTRA(f, LEN64_BUMP(f)+inc_recurse)->num /* non-dirs */
706 #define F_DIR_NODE_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) \
707 + DIRNODE_EXTRA_CNT - 1)->num) /* sender dirs */
708 #define F_DIR_RELNAMES_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) + DIRNODE_EXTRA_CNT \
709 + PTR_EXTRA_CNT - 1)->num) /* sender dirs */
710 #define F_DIR_DEFACL(f) OPT_EXTRA(f, LEN64_BUMP(f))->unum /* receiver dirs */
711 #define F_DIR_DEV_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) + ACL_BUMP(f) \
712 + DEV_EXTRA_CNT - 1)->unum) /* receiver dirs */
714 /* This optional item might follow an F_HL_*() item.
715 * (Note: a device doesn't need to check LEN64_BUMP(f).) */
716 #define F_RDEV_P(f) (&OPT_EXTRA(f, HLINK_BUMP(f) + DEV_EXTRA_CNT - 1)->unum)
718 /* The sum is only present on regular files. */
719 #define F_SUM(f) ((char*)OPT_EXTRA(f, LEN64_BUMP(f) + HLINK_BUMP(f) \
720 + SUM_EXTRA_CNT - 1))
722 /* Some utility defines: */
723 #define F_IS_ACTIVE(f) (f)->basename[0]
724 #define F_IS_HLINKED(f) ((f)->flags & FLAG_HLINKED)
726 #define F_HLINK_NOT_FIRST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_FIRST)
727 #define F_HLINK_NOT_LAST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_LAST)
729 /* These access the F_DIR_DEV_P() and F_RDEV_P() values: */
730 #define DEV_MAJOR(a) (a)[0]
731 #define DEV_MINOR(a) (a)[1]
733 /* These access the F_DIRS_NODE_P() values: */
734 #define DIR_PARENT(a) (a)[0]
735 #define DIR_FIRST_CHILD(a) (a)[1]
736 #define DIR_NEXT_SIBLING(a) (a)[2]
739 * Start the flist array at FLIST_START entries and grow it
740 * by doubling until FLIST_LINEAR then grow by FLIST_LINEAR
742 #define FLIST_START (32 * 1024)
743 #define FLIST_LINEAR (FLIST_START * 512)
746 * Extent size for allocation pools: A minimum size of 128KB
747 * is needed to mmap them so that freeing will release the
750 * Larger sizes reduce leftover fragments and speed free calls
751 * (when they happen). Smaller sizes increase the chance of
752 * freed allocations freeing whole extents.
754 #define NORMAL_EXTENT (256 * 1024)
755 #define SMALL_EXTENT (128 * 1024)
757 #define FLIST_TEMP (1<<1)
760 struct file_list *next, *prev;
761 struct file_struct **files, **sorted;
762 alloc_pool_t file_pool;
765 int low, high; /* 0-relative index values excluding empties */
766 int ndx_start; /* the start offset for inc_recurse mode */
767 int flist_num; /* 1-relative file_list number or 0 */
768 int parent_ndx; /* dir_flist index of parent directory */
769 int in_progress, to_redo;
772 #define SUMFLG_SAME_OFFSET (1<<0)
775 OFF_T offset; /**< offset in file of this chunk */
776 int32 len; /**< length of chunk of file */
777 uint32 sum1; /**< simple checksum */
778 int32 chain; /**< next hash-table collision */
779 short flags; /**< flag bits */
780 char sum2[SUM_LENGTH]; /**< checksum */
784 OFF_T flength; /**< total file length */
785 struct sum_buf *sums; /**< points to info for each chunk */
786 int32 count; /**< how many chunks */
787 int32 blength; /**< block_length */
788 int32 remainder; /**< flength % block_length */
789 int s2length; /**< sum2_length */
793 OFF_T file_size; /* File size (from stat) */
794 OFF_T p_offset; /* Window start */
795 OFF_T p_fd_offset; /* offset of cursor in fd ala lseek */
796 char *p; /* Window pointer */
797 int32 p_size; /* Largest window size we allocated */
798 int32 p_len; /* Latest (rounded) window size */
799 int32 def_window_size; /* Default window size */
800 int fd; /* File Descriptor */
801 int status; /* first errno from read errors */
804 struct chmod_mode_struct;
806 #define MATCHFLG_WILD (1<<0) /* pattern has '*', '[', and/or '?' */
807 #define MATCHFLG_WILD2 (1<<1) /* pattern has '**' */
808 #define MATCHFLG_WILD2_PREFIX (1<<2) /* pattern starts with "**" */
809 #define MATCHFLG_WILD3_SUFFIX (1<<3) /* pattern ends with "***" */
810 #define MATCHFLG_ABS_PATH (1<<4) /* path-match on absolute path */
811 #define MATCHFLG_INCLUDE (1<<5) /* this is an include, not an exclude */
812 #define MATCHFLG_DIRECTORY (1<<6) /* this matches only directories */
813 #define MATCHFLG_WORD_SPLIT (1<<7) /* split rules on whitespace */
814 #define MATCHFLG_NO_INHERIT (1<<8) /* don't inherit these rules */
815 #define MATCHFLG_NO_PREFIXES (1<<9) /* parse no prefixes from patterns */
816 #define MATCHFLG_MERGE_FILE (1<<10)/* specifies a file to merge */
817 #define MATCHFLG_PERDIR_MERGE (1<<11)/* merge-file is searched per-dir */
818 #define MATCHFLG_EXCLUDE_SELF (1<<12)/* merge-file name should be excluded */
819 #define MATCHFLG_FINISH_SETUP (1<<13)/* per-dir merge file needs setup */
820 #define MATCHFLG_NEGATE (1<<14)/* rule matches when pattern does not */
821 #define MATCHFLG_CVS_IGNORE (1<<15)/* rule was -C or :C */
822 #define MATCHFLG_SENDER_SIDE (1<<16)/* rule applies to the sending side */
823 #define MATCHFLG_RECEIVER_SIDE (1<<17)/* rule applies to the receiving side */
824 #define MATCHFLG_CLEAR_LIST (1<<18)/* this item is the "!" token */
825 #define MATCHFLG_PERISHABLE (1<<19)/* perishable if parent dir goes away */
826 #define MATCHFLG_CHMOD (1<<20)/* chmod-tweak matching files */
827 #define MATCHFLG_FORCE_OWNER (1<<21)/* force owner of matching files */
828 #define MATCHFLG_FORCE_GROUP (1<<22)/* force group of matching files */
830 #define MATCHFLGS_SIDES (MATCHFLG_SENDER_SIDE | MATCHFLG_RECEIVER_SIDE)
831 #define MATCHFLGS_ATTRS (MATCHFLG_CHMOD | MATCHFLG_FORCE_OWNER | MATCHFLG_FORCE_GROUP)
833 struct filter_chmod_struct {
834 unsigned int ref_cnt;
836 struct chmod_mode_struct *modes;
839 struct filter_struct {
840 struct filter_struct *next;
845 struct filter_list_struct *mergelist;
847 /* TODO: Use an "extras" mechanism to avoid
848 * allocating this memory when we don't need it. */
849 struct filter_chmod_struct *chmod;
854 struct filter_list_struct {
855 struct filter_struct *head;
856 struct filter_struct *tail;
857 struct filter_struct *parent_dirscan_head;
863 int64 total_transferred_size;
868 int64 flist_buildtime;
869 int64 flist_xfertime;
871 int num_files, num_dirs, num_symlinks, num_devices, num_specials;
872 int created_files, created_dirs, created_symlinks, created_devices, created_specials;
873 int deleted_files, deleted_dirs, deleted_symlinks, deleted_devices, deleted_specials;
877 struct flist_ndx_item {
878 struct flist_ndx_item *next;
883 struct flist_ndx_item *head, *tail;
886 #define EMPTY_ITEM_LIST {NULL, 0, 0}
894 #define EXPAND_ITEM_LIST(lp, type, incr) \
895 (type*)expand_item_list(lp, sizeof (type), #type, incr)
897 #define EMPTY_XBUF {NULL, 0, 0, 0}
901 size_t pos; /* pos = read pos in the buf */
902 size_t len; /* len = chars following pos */
903 size_t size; /* size = total space in buf */
906 #define INIT_XBUF(xb, str, ln, sz) (xb).buf = (str), (xb).len = (ln), (xb).size = (sz), (xb).pos = 0
907 #define INIT_XBUF_STRLEN(xb, str) (xb).buf = (str), (xb).len = strlen((xb).buf), (xb).size = (size_t)-1, (xb).pos = 0
908 /* This one is used to make an output xbuf based on a char[] buffer: */
909 #define INIT_CONST_XBUF(xb, bf) (xb).buf = (bf), (xb).size = sizeof (bf), (xb).len = (xb).pos = 0
911 #define ICB_EXPAND_OUT (1<<0)
912 #define ICB_INCLUDE_BAD (1<<1)
913 #define ICB_INCLUDE_INCOMPLETE (1<<2)
915 #define RL_EOL_NULLS (1<<0)
916 #define RL_DUMP_COMMENTS (1<<1)
917 #define RL_CONVERT (1<<2)
921 char fname[1]; /* has variable size */
924 #include "byteorder.h"
925 #include "lib/mdigest.h"
926 #include "lib/wildmatch.h"
927 #include "lib/permstring.h"
928 #include "lib/addrinfo.h"
931 #define __attribute__(x)
938 #define UNUSED(x) x __attribute__((__unused__))
940 #define NORETURN __attribute__((__noreturn__))
946 struct rsync_acl *acc_acl; /* access ACL */
947 struct rsync_acl *def_acl; /* default ACL */
949 #ifdef SUPPORT_XATTRS
954 #define ACL_READY(sx) ((sx).acc_acl != NULL)
955 #define XATTR_READY(sx) ((sx).xattr != NULL)
959 #ifndef SUPPORT_XATTRS
960 #define x_stat(fn,fst,xst) do_stat(fn,fst)
961 #define x_lstat(fn,fst,xst) do_lstat(fn,fst)
962 #define x_fstat(fd,fst,xst) do_fstat(fd,fst)
965 /* We have replacement versions of these if they're missing. */
966 #ifndef HAVE_ASPRINTF
967 int asprintf(char **ptr, const char *format, ...);
970 #ifndef HAVE_VASPRINTF
971 int vasprintf(char **ptr, const char *format, va_list ap);
974 #if !defined HAVE_VSNPRINTF || !defined HAVE_C99_VSNPRINTF
975 #define vsnprintf rsync_vsnprintf
976 int vsnprintf(char *str, size_t count, const char *fmt, va_list args);
979 #if !defined HAVE_SNPRINTF || !defined HAVE_C99_VSNPRINTF
980 #define snprintf rsync_snprintf
981 int snprintf(char *str, size_t count, const char *fmt,...);
985 #ifndef HAVE_STRERROR
986 extern char *sys_errlist[];
987 #define strerror(i) sys_errlist[i]
991 # define strchr index
992 # define strrchr rindex
995 #ifndef HAVE_ERRNO_DECL
1000 #define SUPPORT_LINKS 1
1003 #define SUPPORT_HARD_LINKS 1
1006 #ifdef HAVE_SIGACTION
1007 #define SIGACTION(n,h) sigact.sa_handler=(h), sigaction((n),&sigact,NULL)
1008 #define signal(n,h) we_need_to_call_SIGACTION_not_signal(n,h)
1010 #define SIGACTION(n,h) signal(n,h)
1014 #define EWOULDBLOCK EAGAIN
1017 #ifndef STDIN_FILENO
1018 #define STDIN_FILENO 0
1021 #ifndef STDOUT_FILENO
1022 #define STDOUT_FILENO 1
1025 #ifndef STDERR_FILENO
1026 #define STDERR_FILENO 2
1030 #define S_IRUSR 0400
1034 #define S_IWUSR 0200
1038 #define ACCESSPERMS 0777
1045 #define CHMOD_BITS (S_ISUID | S_ISGID | S_ISVTX | ACCESSPERMS)
1048 #define _S_IFMT 0170000
1052 #define _S_IFLNK 0120000
1056 #define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK))
1060 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
1064 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
1069 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
1071 #define S_ISSOCK(mode) (0)
1077 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
1079 #define S_ISFIFO(mode) (0)
1084 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
1088 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
1091 /* work out what fcntl flag to use for non-blocking */
1093 # define NONBLOCK_FLAG O_NONBLOCK
1095 # define NONBLOCK_FLAG O_NDELAY
1097 # define NONBLOCK_FLAG FNDELAY
1100 #ifndef INADDR_LOOPBACK
1101 #define INADDR_LOOPBACK 0x7f000001
1105 #define INADDR_NONE 0xffffffff
1108 #define IS_SPECIAL(mode) (S_ISSOCK(mode) || S_ISFIFO(mode))
1109 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode))
1111 /* Initial mask on permissions given to temporary files. Mask off setuid
1112 bits and group access because of potential race-condition security
1113 holes, and mask other access because mode 707 is bizarre */
1114 #define INITACCESSPERMS 0700
1116 /* handler for null strings in printf format */
1117 #define NS(s) ((s)?(s):"<NULL>")
1119 /* Convenient wrappers for malloc and realloc. Use them. */
1120 #define new(type) ((type*)malloc(sizeof (type)))
1121 #define new0(type) ((type*)calloc(1, sizeof (type)))
1122 #define new_array(type, num) ((type*)_new_array((num), sizeof (type), 0))
1123 #define new_array0(type, num) ((type*)_new_array((num), sizeof (type), 1))
1124 #define realloc_array(ptr, type, num) ((type*)_realloc_array((ptr), sizeof(type), (num)))
1126 /* use magic gcc attributes to catch format errors */
1127 void rprintf(enum logcode , const char *, ...)
1128 __attribute__((format (printf, 2, 3)))
1131 /* This is just like rprintf, but it also tries to print some
1132 * representation of the error code. Normally errcode = errno. */
1133 void rsyserr(enum logcode, int, const char *, ...)
1134 __attribute__((format (printf, 3, 4)))
1137 /* Make sure that the O_BINARY flag is defined. */
1142 #ifndef HAVE_STRLCPY
1143 size_t strlcpy(char *d, const char *s, size_t bufsize);
1146 #ifndef HAVE_STRLCAT
1147 size_t strlcat(char *d, const char *s, size_t bufsize);
1151 #define WEXITSTATUS(stat) ((int)(((stat)>>8)&0xFF))
1154 #define WIFEXITED(stat) ((int)((stat)&0xFF) == 0)
1157 #define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__)
1160 #define MY_UID() geteuid()
1162 #define MY_UID() getuid()
1166 #define MY_GID() getegid()
1168 #define MY_GID() getgid()
1171 #ifdef FORCE_FD_ZERO_MEMSET
1173 #define FD_ZERO(fdsetp) memset(fdsetp, 0, sizeof (fd_set))
1176 extern short info_levels[], debug_levels[];
1178 #define INFO_GTE(flag, lvl) (info_levels[INFO_##flag] >= (lvl))
1179 #define INFO_EQ(flag, lvl) (info_levels[INFO_##flag] == (lvl))
1180 #define DEBUG_GTE(flag, lvl) (debug_levels[DEBUG_##flag] >= (lvl))
1181 #define DEBUG_EQ(flag, lvl) (debug_levels[DEBUG_##flag] == (lvl))
1183 #define INFO_BACKUP 0
1184 #define INFO_COPY (INFO_BACKUP+1)
1185 #define INFO_DEL (INFO_COPY+1)
1186 #define INFO_FLIST (INFO_DEL+1)
1187 #define INFO_MISC (INFO_FLIST+1)
1188 #define INFO_MOUNT (INFO_MISC+1)
1189 #define INFO_NAME (INFO_MOUNT+1)
1190 #define INFO_PROGRESS (INFO_NAME+1)
1191 #define INFO_REMOVE (INFO_PROGRESS+1)
1192 #define INFO_SKIP (INFO_REMOVE+1)
1193 #define INFO_STATS (INFO_SKIP+1)
1194 #define INFO_SYMSAFE (INFO_STATS+1)
1196 #define COUNT_INFO (INFO_SYMSAFE+1)
1199 #define DEBUG_BACKUP (DEBUG_ACL+1)
1200 #define DEBUG_BIND (DEBUG_BACKUP+1)
1201 #define DEBUG_CHDIR (DEBUG_BIND+1)
1202 #define DEBUG_CONNECT (DEBUG_CHDIR+1)
1203 #define DEBUG_CMD (DEBUG_CONNECT+1)
1204 #define DEBUG_DEL (DEBUG_CMD+1)
1205 #define DEBUG_DELTASUM (DEBUG_DEL+1)
1206 #define DEBUG_DUP (DEBUG_DELTASUM+1)
1207 #define DEBUG_EXIT (DEBUG_DUP+1)
1208 #define DEBUG_FILTER (DEBUG_EXIT+1)
1209 #define DEBUG_FLIST (DEBUG_FILTER+1)
1210 #define DEBUG_FUZZY (DEBUG_FLIST+1)
1211 #define DEBUG_GENR (DEBUG_FUZZY+1)
1212 #define DEBUG_HASH (DEBUG_GENR+1)
1213 #define DEBUG_HLINK (DEBUG_HASH+1)
1214 #define DEBUG_ICONV (DEBUG_HLINK+1)
1215 #define DEBUG_OWN (DEBUG_ICONV+1)
1216 #define DEBUG_PROTO (DEBUG_OWN+1)
1217 #define DEBUG_RECV (DEBUG_PROTO+1)
1218 #define DEBUG_SEND (DEBUG_RECV+1)
1219 #define DEBUG_TIME (DEBUG_SEND+1)
1221 #define COUNT_DEBUG (DEBUG_TIME+1)
1223 #ifndef HAVE_INET_NTOP
1224 const char *inet_ntop(int af, const void *src, char *dst, size_t size);
1227 #ifndef HAVE_INET_PTON
1228 int inet_pton(int af, const char *src, void *dst);
1231 #ifdef MAINTAINER_MODE
1232 const char *get_panic_action(void);