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 version 2 as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
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 */
75 /* These flags are passed to functions but not stored. */
77 #define FLAG_DIVERT_DIRS (1<<16)/* sender */
79 #define BITS_SET(val,bits) (((val) & (bits)) == (bits))
80 #define BITS_SETnUNSET(val,onbits,offbits) (((val) & ((onbits)|(offbits))) == (onbits))
81 #define BITS_EQUAL(b1,b2,mask) (((unsigned)(b1) & (unsigned)(mask)) \
82 == ((unsigned)(b2) & (unsigned)(mask)))
84 /* update this if you make incompatible changes */
85 #define PROTOCOL_VERSION 30
87 /* This is used when working on a new protocol version in CVS, and should
88 * be a new non-zero value for each CVS change that affects the protocol.
89 * It must ALWAYS be 0 when the protocol goes final! */
90 #define SUBPROTOCOL_VERSION 2
92 /* We refuse to interoperate with versions that are not in this range.
93 * Note that we assume we'll work with later versions: the onus is on
94 * people writing them to make sure that they don't send us anything
95 * we won't understand.
97 * Interoperation with old but supported protocol versions
98 * should cause a warning to be printed. At a future date
99 * the old protocol will become the minimum and
100 * compatibility code removed.
102 * There are two possible explanations for the limit at
103 * MAX_PROTOCOL_VERSION: either to allow new major-rev versions that
104 * do not interoperate with us, and (more likely) so that we can
105 * detect an attempt to connect rsync to a non-rsync server, which is
106 * unlikely to begin by sending a byte between MIN_PROTOCL_VERSION and
107 * MAX_PROTOCOL_VERSION. */
109 #define MIN_PROTOCOL_VERSION 20
110 #define OLD_PROTOCOL_VERSION 25
111 #define MAX_PROTOCOL_VERSION 40
113 #define FILECNT_LOOKAHEAD 1000
115 #define RSYNC_PORT 873
117 #define SPARSE_WRITE_SIZE (1024)
118 #define WRITE_SIZE (32*1024)
119 #define CHUNK_SIZE (32*1024)
120 #define MAX_MAP_SIZE (256*1024)
121 #define IO_BUFFER_SIZE (4092)
122 #define MAX_BLOCK_SIZE ((int32)1 << 29)
124 #define IOERR_GENERAL (1<<0) /* For backward compatibility, this must == 1 */
125 #define IOERR_VANISHED (1<<1)
126 #define IOERR_DEL_LIMIT (1<<2)
128 #define MAX_ARGS 1000
129 #define MAX_BASIS_DIRS 20
130 #define MAX_SERVER_ARGS (MAX_BASIS_DIRS*2 + 100)
135 #define SERVER_FILTERS 1
136 #define ALL_FILTERS 2
138 #define XFLG_FATAL_ERRORS (1<<0)
139 #define XFLG_OLD_PREFIXES (1<<1)
140 #define XFLG_ANCHORED2ABS (1<<2)
141 #define XFLG_ABS_IF_SLASH (1<<3)
143 #define ATTRS_REPORT (1<<0)
144 #define ATTRS_SKIP_MTIME (1<<1)
147 #define NORMAL_FLUSH 0
149 #define PDIR_CREATE 1
150 #define PDIR_DELETE 0
152 /* Note: 0x00 - 0x7F are used for basis_dir[] indexes! */
153 #define FNAMECMP_BASIS_DIR_LOW 0x00 /* Must remain 0! */
154 #define FNAMECMP_BASIS_DIR_HIGH 0x7F
155 #define FNAMECMP_FNAME 0x80
156 #define FNAMECMP_PARTIAL_DIR 0x81
157 #define FNAMECMP_BACKUP 0x82
158 #define FNAMECMP_FUZZY 0x83
160 /* For use by the itemize_changes code */
161 #define ITEM_REPORT_ATIME (1<<0)
162 #define ITEM_REPORT_CHECKSUM (1<<1)
163 #define ITEM_REPORT_SIZE (1<<2)
164 #define ITEM_REPORT_TIME (1<<3)
165 #define ITEM_REPORT_PERMS (1<<4)
166 #define ITEM_REPORT_OWNER (1<<5)
167 #define ITEM_REPORT_GROUP (1<<6)
168 #define ITEM_REPORT_ACL (1<<7)
169 #define ITEM_REPORT_XATTR (1<<8)
170 #define ITEM_BASIS_TYPE_FOLLOWS (1<<11)
171 #define ITEM_XNAME_FOLLOWS (1<<12)
172 #define ITEM_IS_NEW (1<<13)
173 #define ITEM_LOCAL_CHANGE (1<<14)
174 #define ITEM_TRANSFER (1<<15)
175 /* These are outside the range of the transmitted flags. */
176 #define ITEM_MISSING_DATA (1<<16) /* used by log_formatted() */
177 #define ITEM_DELETED (1<<17) /* used by log_formatted() */
178 #define ITEM_MATCHED (1<<18) /* used by itemize() */
180 #define SIGNIFICANT_ITEM_FLAGS (~(\
181 ITEM_BASIS_TYPE_FOLLOWS | ITEM_XNAME_FOLLOWS | ITEM_LOCAL_CHANGE))
184 /* Log-message categories. Only FERROR and FINFO get sent over the socket,
185 * but FLOG and FSOCKERR can be sent over the receiver -> generator pipe.
186 * FLOG only goes to the log file, not the client; FCLIENT is the opposite. */
187 enum logcode { FNONE=0, FERROR=1, FINFO=2, FLOG=3, FCLIENT=4, FSOCKERR=5 };
189 /* Messages types that are sent over the message channel. The logcode
190 * values must all be present here with identical numbers. */
192 MSG_DATA=0, /* raw data on the multiplexed stream */
193 MSG_ERROR=FERROR, MSG_INFO=FINFO, /* remote logging */
194 MSG_LOG=FLOG, MSG_CLIENT=FCLIENT, MSG_SOCKERR=FSOCKERR, /* sibling logging */
195 MSG_REDO=9, /* reprocess indicated flist index */
196 MSG_FLIST=20, /* extra file list over sibling socket */
197 MSG_FLIST_EOF=21,/* we've transmitted all the file lists */
198 MSG_IO_ERROR=22,/* the sending side had an I/O error */
199 MSG_NOOP=42, /* a do-nothing message */
200 MSG_SUCCESS=100,/* successfully updated indicated flist index */
201 MSG_DELETED=101,/* successfully deleted a file on receiving side */
202 MSG_NO_SEND=102,/* sender failed to open a file we wanted */
203 MSG_DONE=86 /* current phase is done */
207 #define NDX_FLIST_EOF -2
208 #define NDX_FLIST_OFFSET -101
214 /* The default RSYNC_RSH is always set in config.h. */
217 #ifdef HAVE_SYS_TYPES_H
218 # include <sys/types.h>
220 #ifdef HAVE_SYS_STAT_H
221 # include <sys/stat.h>
227 # ifdef HAVE_STDLIB_H
232 # if !defined STDC_HEADERS && defined HAVE_MEMORY_H
237 #ifdef HAVE_STRINGS_H
238 # include <strings.h>
240 #ifdef HAVE_INTTYPES_H
241 # include <inttypes.h>
247 #ifdef HAVE_SYS_PARAM_H
248 #include <sys/param.h>
251 #if defined HAVE_MALLOC_H && (defined HAVE_MALLINFO || !defined HAVE_STDLIB_H)
255 #ifdef HAVE_SYS_SOCKET_H
256 #include <sys/socket.h>
259 #ifdef TIME_WITH_SYS_TIME
260 #include <sys/time.h>
263 #ifdef HAVE_SYS_TIME_H
264 #include <sys/time.h>
273 #ifdef HAVE_SYS_FCNTL_H
274 #include <sys/fcntl.h>
278 #ifdef HAVE_SYS_IOCTL_H
279 #include <sys/ioctl.h>
282 #ifdef HAVE_SYS_FILIO_H
283 #include <sys/filio.h>
287 #ifdef HAVE_SYS_WAIT_H
288 #include <sys/wait.h>
302 #ifdef HAVE_SYS_SELECT_H
303 #include <sys/select.h>
306 #ifdef HAVE_SYS_MODE_H
307 /* apparently AIX needs this for S_ISLNK */
309 #include <sys/mode.h>
317 /* these are needed for the uid/gid mapping code */
322 #include <netinet/in.h>
323 #include <arpa/inet.h>
326 #include <sys/file.h>
331 # define dirent direct
332 # ifdef HAVE_SYS_NDIR_H
333 # include <sys/ndir.h>
335 # ifdef HAVE_SYS_DIR_H
336 # include <sys/dir.h>
343 #ifdef MAJOR_IN_MKDEV
344 #include <sys/mkdev.h>
345 # if !defined makedev && (defined mkdev || defined _WIN32 || defined __WIN32__)
346 # define makedev mkdev
348 #elif defined MAJOR_IN_SYSMACROS
349 #include <sys/sysmacros.h>
352 #ifdef MAKEDEV_TAKES_3_ARGS
353 #define MAKEDEV(devmajor,devminor) makedev(0,devmajor,devminor)
355 #define MAKEDEV(devmajor,devminor) makedev(devmajor,devminor)
366 #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H
371 #elif defined ICONV_CONST
377 #include "lib/pool_alloc.h"
382 #define uchar unsigned char
385 #ifdef SIGNED_CHAR_OK
386 #define schar signed char
392 #if SIZEOF_INT16_T == 2
393 # define int16 int16_t
400 #if SIZEOF_UINT16_T == 2
401 # define uint16 uint16_t
403 # define uint16 unsigned int16
407 /* Find a variable that is either exactly 32-bits or longer.
408 * If some code depends on 32-bit truncation, it will need to
409 * take special action in a "#if SIZEOF_INT32 > 4" section. */
411 #if SIZEOF_INT32_T == 4
412 # define int32 int32_t
413 # define SIZEOF_INT32 4
414 #elif SIZEOF_INT == 4
416 # define SIZEOF_INT32 4
417 #elif SIZEOF_LONG == 4
419 # define SIZEOF_INT32 4
420 #elif SIZEOF_SHORT == 4
422 # define SIZEOF_INT32 4
425 # define SIZEOF_INT32 SIZEOF_INT
426 #elif SIZEOF_LONG > 4
428 # define SIZEOF_INT32 SIZEOF_LONG
430 # error Could not find a 32-bit integer variable
433 # define SIZEOF_INT32 4
437 #if SIZEOF_UINT32_T == 4
438 # define uint32 uint32_t
440 # define uint32 unsigned int32
444 #if SIZEOF_OFF_T == 8 || !SIZEOF_OFF64_T || !defined HAVE_STRUCT_STAT64
446 #define STRUCT_STAT struct stat
448 #define OFF_T off64_t
449 #define STRUCT_STAT struct stat64
450 #define USE_STAT64_FUNCS 1
453 /* CAVEAT: on some systems, int64 will really be a 32-bit integer IFF
454 * that's the maximum size the file system can handle and there is no
455 * 64-bit type available. The rsync source must therefore take steps
456 * to ensure that any code that really requires a 64-bit integer has
457 * it (e.g. the checksum code uses two 32-bit integers for its 64-bit
459 #if SIZEOF_INT64_T == 8
460 # define int64 int64_t
461 # define SIZEOF_INT64 8
462 #elif SIZEOF_LONG == 8
464 # define SIZEOF_INT64 8
465 #elif SIZEOF_INT == 8
467 # define SIZEOF_INT64 8
468 #elif SIZEOF_LONG_LONG == 8
469 # define int64 long long
470 # define SIZEOF_INT64 8
471 #elif SIZEOF_OFF64_T == 8
472 # define int64 off64_t
473 # define SIZEOF_INT64 8
474 #elif SIZEOF_OFF_T == 8
476 # define SIZEOF_INT64 8
479 # define SIZEOF_INT64 SIZEOF_INT
480 #elif SIZEOF_LONG > 8
482 # define SIZEOF_INT64 SIZEOF_LONG
483 #elif SIZEOF_LONG_LONG > 8
484 # define int64 long long
485 # define SIZEOF_INT64 SIZEOF_LONG_LONG
487 /* As long as it gets... */
489 # define SIZEOF_INT64 SIZEOF_OFF_T
492 /* Starting from protocol version 26, we always use 64-bit
493 * ino_t and dev_t internally, even if this platform does not
494 * allow files to have 64-bit inums. That's because the
495 * receiver needs to find duplicate (dev,ino) tuples to detect
496 * hardlinks, and it might have files coming from a platform
497 * that has 64-bit inums.
499 * The only exception is if we're on a platform with no 64-bit type at
502 * Because we use read_longint() to get these off the wire, if you
503 * transfer devices or hardlinks with dev or inum > 2**32 to a machine
504 * with no 64-bit types then you will get an overflow error. Probably
505 * not many people have that combination of machines, and you can
506 * avoid it by not preserving hardlinks or not transferring device
507 * nodes. It's not clear that any other behaviour is better.
509 * Note that if you transfer devices from a 64-bit-devt machine (say,
510 * Solaris) to a 32-bit-devt machine (say, Linux-2.2/x86) then the
511 * device numbers will be truncated. But it's a kind of silly thing
514 * FIXME: I don't think the code in flist.c has ever worked on a system
515 * where dev_t is a struct.
524 #define MIN(a,b) ((a)<(b)?(a):(b))
528 #define MAX(a,b) ((a)>(b)?(a):(b))
531 #ifndef MAXHOSTNAMELEN
532 #define MAXHOSTNAMELEN 256
535 #define SUM_LENGTH 16
536 #define SHORT_SUM_LENGTH 2
537 #define BLOCKSUM_BIAS 10
540 #define MAXPATHLEN 1024
543 /* We want a roomy line buffer that can hold more than MAXPATHLEN,
544 * and significantly more than an overly short MAXPATHLEN. */
545 #if MAXPATHLEN < 4096
546 #define BIGPATHBUFLEN (4096+1024)
548 #define BIGPATHBUFLEN (MAXPATHLEN+1024)
556 #define INADDR_NONE 0xffffffff
559 #ifndef IN_LOOPBACKNET
560 #define IN_LOOPBACKNET 127
563 #if HAVE_UNIXWARE_ACLS|HAVE_SOLARIS_ACLS|HAVE_HPUX_ACLS
564 #define ACLS_NEED_MASK 1
567 #define GID_NONE ((gid_t)-1)
575 const char *dirname; /* The dir info inside the transfer */
576 time_t modtime; /* When the item was last modified */
577 uint32 len32; /* Lowest 32 bits of the file's length */
578 uint16 mode; /* The item's type and permissions */
579 uint16 flags; /* The FLAG_* bits for this item */
580 const char basename[1]; /* The basename (AKA filename) follows */
583 extern int file_extra_cnt;
584 extern int preserve_uid;
585 extern int preserve_gid;
586 extern int preserve_acls;
587 extern int preserve_xattrs;
589 #define FILE_STRUCT_LEN (offsetof(struct file_struct, basename))
590 #define EXTRA_LEN (sizeof (union file_extras))
591 #define PTR_EXTRA_LEN ((sizeof (char *) + EXTRA_LEN - 1) / EXTRA_LEN)
592 #define SUM_EXTRA_CNT ((MAX_DIGEST_LEN + EXTRA_LEN - 1) / EXTRA_LEN)
594 #define REQ_EXTRA(f,ndx) ((union file_extras*)(f) - (ndx))
595 #define OPT_EXTRA(f,bump) ((union file_extras*)(f) - file_extra_cnt - 1 - (bump))
597 #define LEN64_BUMP(f) ((f)->flags & FLAG_LENGTH64 ? 1 : 0)
598 #define HLINK_BUMP(f) (F_IS_HLINKED(f) ? 1 : 0)
600 /* The length applies to all items. */
602 #define F_LENGTH(f) ((int64)(f)->len32)
604 #define F_LENGTH(f) ((int64)(f)->len32 + ((f)->flags & FLAG_LENGTH64 \
605 ? (int64)OPT_EXTRA(f, 0)->unum << 32 : 0))
608 /* If there is a symlink string, it is always right after the basename */
609 #define F_SYMLINK(f) ((f)->basename + strlen((f)->basename) + 1)
611 /* The sending side always has this available: */
612 #define F_PATHNAME(f) (*(const char**)REQ_EXTRA(f, PTR_EXTRA_LEN))
614 /* The receiving side always has this available: */
615 #define F_DEPTH(f) REQ_EXTRA(f, 1)->num
617 /* When the associated option is on, all entries will have these present: */
618 #define F_OWNER(f) REQ_EXTRA(f, preserve_uid)->unum
619 #define F_GROUP(f) REQ_EXTRA(f, preserve_gid)->unum
620 #define F_ACL(f) REQ_EXTRA(f, preserve_acls)->num
621 #define F_XATTR(f) REQ_EXTRA(f, preserve_xattrs)->num
622 #define F_NDX(f) REQ_EXTRA(f, ic_ndx)->num
624 /* These items are per-entry optional and mutally exclusive: */
625 #define F_HL_GNUM(f) OPT_EXTRA(f, LEN64_BUMP(f))->num
626 #define F_HL_PREV(f) OPT_EXTRA(f, LEN64_BUMP(f))->num
627 #define F_DEF_ACL(f) OPT_EXTRA(f, LEN64_BUMP(f))->unum
628 #define F_DIRDEV_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) + 2 - 1)->unum)
629 #define F_DIRNODE_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) + 3 - 1)->num)
631 /* This optional item might follow an F_HL_*() item.
632 * (Note: a device doesn't need to check LEN64_BUMP(f).) */
633 #define F_RDEV_P(f) (&OPT_EXTRA(f, HLINK_BUMP(f) + 2 - 1)->unum)
635 /* The sum is only present on regular files. */
636 #define F_SUM(f) ((const char*)OPT_EXTRA(f, LEN64_BUMP(f) + HLINK_BUMP(f) \
637 + SUM_EXTRA_CNT - 1))
639 /* Some utility defines: */
640 #define F_IS_ACTIVE(f) (f)->basename[0]
641 #define F_IS_HLINKED(f) ((f)->flags & FLAG_HLINKED)
643 #define F_HLINK_NOT_FIRST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_FIRST)
644 #define F_HLINK_NOT_LAST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_LAST)
646 #define F_UID(f) ((uid_t)F_OWNER(f))
647 #define F_GID(f) ((gid_t)F_GROUP(f))
649 #define DEV_MAJOR(a) (a)[0]
650 #define DEV_MINOR(a) (a)[1]
652 #define DIR_PARENT(a) (a)[0]
653 #define DIR_FIRST_CHILD(a) (a)[1]
654 #define DIR_NEXT_SIBLING(a) (a)[2]
657 * Start the flist array at FLIST_START entries and grow it
658 * by doubling until FLIST_LINEAR then grow by FLIST_LINEAR
660 #define FLIST_START (32 * 1024)
661 #define FLIST_LINEAR (FLIST_START * 512)
664 * Extent size for allocation pools: A minimum size of 128KB
665 * is needed to mmap them so that freeing will release the
668 * Larger sizes reduce leftover fragments and speed free calls
669 * (when they happen). Smaller sizes increase the chance of
670 * freed allocations freeing whole extents.
672 #define FILE_EXTENT (256 * 1024)
673 #define HLINK_EXTENT (128 * 1024)
675 #define FLIST_TEMP (1<<1)
678 struct file_list *next, *prev;
679 struct file_struct **files, **sorted;
680 alloc_pool_t file_pool;
682 int low, high; /* 0-relative index values excluding empties */
683 int ndx_start; /* the start offset for inc_recurse mode */
684 int parent_ndx; /* dir_flist index of parent directory */
685 int in_progress, to_redo;
688 #define SUMFLG_SAME_OFFSET (1<<0)
691 OFF_T offset; /**< offset in file of this chunk */
692 int32 len; /**< length of chunk of file */
693 uint32 sum1; /**< simple checksum */
694 int32 chain; /**< next hash-table collision */
695 short flags; /**< flag bits */
696 char sum2[SUM_LENGTH]; /**< checksum */
700 OFF_T flength; /**< total file length */
701 struct sum_buf *sums; /**< points to info for each chunk */
702 int32 count; /**< how many chunks */
703 int32 blength; /**< block_length */
704 int32 remainder; /**< flength % block_length */
705 int s2length; /**< sum2_length */
709 OFF_T file_size; /* File size (from stat) */
710 OFF_T p_offset; /* Window start */
711 OFF_T p_fd_offset; /* offset of cursor in fd ala lseek */
712 char *p; /* Window pointer */
713 int32 p_size; /* Largest window size we allocated */
714 int32 p_len; /* Latest (rounded) window size */
715 int32 def_window_size; /* Default window size */
716 int fd; /* File Descriptor */
717 int status; /* first errno from read errors */
720 #define MATCHFLG_WILD (1<<0) /* pattern has '*', '[', and/or '?' */
721 #define MATCHFLG_WILD2 (1<<1) /* pattern has '**' */
722 #define MATCHFLG_WILD2_PREFIX (1<<2) /* pattern starts with "**" */
723 #define MATCHFLG_WILD3_SUFFIX (1<<3) /* pattern ends with "***" */
724 #define MATCHFLG_ABS_PATH (1<<4) /* path-match on absolute path */
725 #define MATCHFLG_INCLUDE (1<<5) /* this is an include, not an exclude */
726 #define MATCHFLG_DIRECTORY (1<<6) /* this matches only directories */
727 #define MATCHFLG_WORD_SPLIT (1<<7) /* split rules on whitespace */
728 #define MATCHFLG_NO_INHERIT (1<<8) /* don't inherit these rules */
729 #define MATCHFLG_NO_PREFIXES (1<<9) /* parse no prefixes from patterns */
730 #define MATCHFLG_MERGE_FILE (1<<10)/* specifies a file to merge */
731 #define MATCHFLG_PERDIR_MERGE (1<<11)/* merge-file is searched per-dir */
732 #define MATCHFLG_EXCLUDE_SELF (1<<12)/* merge-file name should be excluded */
733 #define MATCHFLG_FINISH_SETUP (1<<13)/* per-dir merge file needs setup */
734 #define MATCHFLG_NEGATE (1<<14)/* rule matches when pattern does not */
735 #define MATCHFLG_CVS_IGNORE (1<<15)/* rule was -C or :C */
736 #define MATCHFLG_SENDER_SIDE (1<<16)/* rule applies to the sending side */
737 #define MATCHFLG_RECEIVER_SIDE (1<<17)/* rule applies to the receiving side */
738 #define MATCHFLG_CLEAR_LIST (1<<18)/* this item is the "!" token */
739 #define MATCHFLG_PERISHABLE (1<<19)/* perishable if parent dir goes away */
741 #define MATCHFLGS_FROM_CONTAINER (MATCHFLG_ABS_PATH | MATCHFLG_INCLUDE \
742 | MATCHFLG_DIRECTORY | MATCHFLG_SENDER_SIDE \
743 | MATCHFLG_NEGATE | MATCHFLG_RECEIVER_SIDE \
744 | MATCHFLG_PERISHABLE)
746 struct filter_struct {
747 struct filter_struct *next;
752 struct filter_list_struct *mergelist;
756 struct filter_list_struct {
757 struct filter_struct *head;
758 struct filter_struct *tail;
764 int64 total_transferred_size;
769 int64 flist_buildtime;
770 int64 flist_xfertime;
773 int num_transferred_files;
774 int current_file_index;
777 struct chmod_mode_struct;
779 #define EMPTY_ITEM_LIST {NULL, 0, 0}
787 #define EXPAND_ITEM_LIST(lp, type, incr) \
788 (type*)expand_item_list(lp, sizeof (type), #type, incr)
790 #include "byteorder.h"
791 #include "lib/mdigest.h"
792 #include "lib/wildmatch.h"
793 #include "lib/permstring.h"
794 #include "lib/addrinfo.h"
797 #define __attribute__(x)
804 #define UNUSED(x) x __attribute__((__unused__))
806 #define NORETURN __attribute__((__noreturn__))
812 struct rsync_acl *acc_acl; /* access ACL */
813 struct rsync_acl *def_acl; /* default ACL */
815 #ifdef SUPPORT_XATTRS
820 #define ACL_READY(sx) ((sx).acc_acl != NULL)
821 #define XATTR_READY(sx) ((sx).xattr != NULL)
825 #ifndef SUPPORT_XATTRS
826 #define x_stat(fn,fst,xst) do_stat(fn,fst)
827 #define x_lstat(fn,fst,xst) do_lstat(fn,fst)
828 #define x_fstat(fd,fst,xst) do_fstat(fd,fst)
831 /* We have replacement versions of these if they're missing. */
832 #ifndef HAVE_ASPRINTF
833 int asprintf(char **ptr, const char *format, ...);
836 #ifndef HAVE_VASPRINTF
837 int vasprintf(char **ptr, const char *format, va_list ap);
840 #if !defined HAVE_VSNPRINTF || !defined HAVE_C99_VSNPRINTF
841 #define vsnprintf rsync_vsnprintf
842 int vsnprintf(char *str, size_t count, const char *fmt, va_list args);
845 #if !defined HAVE_SNPRINTF || !defined HAVE_C99_VSNPRINTF
846 #define snprintf rsync_snprintf
847 int snprintf(char *str, size_t count, const char *fmt,...);
851 #ifndef HAVE_STRERROR
852 extern char *sys_errlist[];
853 #define strerror(i) sys_errlist[i]
857 # define strchr index
858 # define strrchr rindex
861 #ifndef HAVE_ERRNO_DECL
866 #define SUPPORT_LINKS 1
869 #define SUPPORT_HARD_LINKS 1
872 #ifdef HAVE_SIGACTION
873 #define SIGACTION(n,h) sigact.sa_handler=(h), sigaction((n),&sigact,NULL)
874 #define signal(n,h) we_need_to_call_SIGACTION_not_signal(n,h)
876 #define SIGACTION(n,h) signal(n,h)
880 #define EWOULDBLOCK EAGAIN
884 #define STDIN_FILENO 0
887 #ifndef STDOUT_FILENO
888 #define STDOUT_FILENO 1
891 #ifndef STDERR_FILENO
892 #define STDERR_FILENO 2
904 #define ACCESSPERMS 0777
911 #define CHMOD_BITS (S_ISUID | S_ISGID | S_ISVTX | ACCESSPERMS)
914 #define _S_IFMT 0170000
918 #define _S_IFLNK 0120000
922 #define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK))
926 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
930 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
935 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
937 #define S_ISSOCK(mode) (0)
943 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
945 #define S_ISFIFO(mode) (0)
950 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
954 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
957 /* work out what fcntl flag to use for non-blocking */
959 # define NONBLOCK_FLAG O_NONBLOCK
961 # define NONBLOCK_FLAG O_NDELAY
963 # define NONBLOCK_FLAG FNDELAY
966 #ifndef INADDR_LOOPBACK
967 #define INADDR_LOOPBACK 0x7f000001
971 #define INADDR_NONE 0xffffffff
974 #define IS_SPECIAL(mode) (S_ISSOCK(mode) || S_ISFIFO(mode))
975 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode))
977 /* Initial mask on permissions given to temporary files. Mask off setuid
978 bits and group access because of potential race-condition security
979 holes, and mask other access because mode 707 is bizarre */
980 #define INITACCESSPERMS 0700
982 /* handler for null strings in printf format */
983 #define NS(s) ((s)?(s):"<NULL>")
985 /* Convenient wrappers for malloc and realloc. Use them. */
986 #define new(type) ((type *)malloc(sizeof(type)))
987 #define new_array(type, num) ((type *)_new_array(sizeof(type), (num)))
988 #define realloc_array(ptr, type, num) ((type *)_realloc_array((ptr), sizeof(type), (num)))
990 /* use magic gcc attributes to catch format errors */
991 void rprintf(enum logcode , const char *, ...)
992 __attribute__((format (printf, 2, 3)))
995 /* This is just like rprintf, but it also tries to print some
996 * representation of the error code. Normally errcode = errno. */
997 void rsyserr(enum logcode, int, const char *, ...)
998 __attribute__((format (printf, 3, 4)))
1001 /* Make sure that the O_BINARY flag is defined. */
1006 #ifndef HAVE_STRLCPY
1007 size_t strlcpy(char *d, const char *s, size_t bufsize);
1010 #ifndef HAVE_STRLCAT
1011 size_t strlcat(char *d, const char *s, size_t bufsize);
1015 #define WEXITSTATUS(stat) ((int)(((stat)>>8)&0xFF))
1018 #define WIFEXITED(stat) ((int)((stat)&0xFF) == 0)
1021 #define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__)
1024 #define MY_UID() geteuid()
1026 #define MY_UID() getuid()
1030 #define MY_GID() getegid()
1032 #define MY_GID() getgid()
1037 #ifndef HAVE_INET_NTOP
1038 const char *inet_ntop(int af, const void *src, char *dst, size_t size);
1041 #ifndef HAVE_INET_PTON
1042 int inet_pton(int af, const char *src, void *dst);
1045 #ifdef MAINTAINER_MODE
1046 const char *get_panic_action(void);
1049 static inline int to_wire_mode(mode_t mode)
1051 #ifdef SUPPORT_LINKS
1052 #if _S_IFLNK != 0120000
1054 return (mode & ~(_S_IFMT)) | 0120000;
1060 static inline mode_t from_wire_mode(int mode)
1062 #if _S_IFLNK != 0120000
1063 if ((mode & (_S_IFMT)) == 0120000)
1064 return (mode & ~(_S_IFMT)) | _S_IFLNK;
1070 isDigit(const char *ptr)
1072 return isdigit(*(unsigned char *)ptr);
1076 isPrint(const char *ptr)
1078 return isprint(*(unsigned char *)ptr);
1082 isSpace(const char *ptr)
1084 return isspace(*(unsigned char *)ptr);
1088 isLower(const char *ptr)
1090 return islower(*(unsigned char *)ptr);
1094 isUpper(const char *ptr)
1096 return isupper(*(unsigned char *)ptr);
1100 toLower(const char *ptr)
1102 return tolower(*(unsigned char *)ptr);
1106 toUpper(const char *ptr)
1108 return toupper(*(unsigned char *)ptr);