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/"
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) */
64 /* These flags are used in the live flist data. */
66 #define FLAG_TOP_DIR (1<<0) /* sender/receiver/generator */
67 #define FLAG_FILE_SENT (1<<1) /* sender/receiver/generator */
68 #define FLAG_DIR_CREATED (1<<1) /* generator */
69 #define FLAG_CONTENT_DIR (1<<2) /* sender/receiver/generator */
70 #define FLAG_MOUNT_DIR (1<<3) /* sender/generator (dirs only) */
71 #define FLAG_SKIP_HLINK (1<<3) /* receiver/generator (w/FLAG_HLINKED) */
72 #define FLAG_DUPLICATE (1<<4) /* sender */
73 #define FLAG_MISSING_DIR (1<<4) /* generator */
74 #define FLAG_HLINKED (1<<5) /* receiver/generator (checked on all types) */
75 #define FLAG_HLINK_FIRST (1<<6) /* receiver/generator (w/FLAG_HLINKED) */
76 #define FLAG_IMPLIED_DIR (1<<6) /* sender/receiver/generator (dirs only) */
77 #define FLAG_HLINK_LAST (1<<7) /* receiver/generator */
78 #define FLAG_HLINK_DONE (1<<8) /* receiver/generator (checked on all types) */
79 #define FLAG_LENGTH64 (1<<9) /* sender/receiver/generator */
80 #define FLAG_SKIP_GROUP (1<<10) /* receiver/generator */
81 #define FLAG_TIME_FAILED (1<<11)/* generator */
83 /* These flags are passed to functions but not stored. */
85 #define FLAG_DIVERT_DIRS (1<<16)/* sender */
86 #define FLAG_DOTDIR_NAME (1<<17)/* 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 30
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! */
99 #define SUBPROTOCOL_VERSION 0
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 #define IOERR_GENERAL (1<<0) /* For backward compatibility, this must == 1 */
134 #define IOERR_VANISHED (1<<1)
135 #define IOERR_DEL_LIMIT (1<<2)
137 #define MAX_ARGS 1000
138 #define MAX_BASIS_DIRS 20
139 #define MAX_SERVER_ARGS (MAX_BASIS_DIRS*2 + 100)
144 #define SERVER_FILTERS 1
145 #define ALL_FILTERS 2
147 #define XFLG_FATAL_ERRORS (1<<0)
148 #define XFLG_OLD_PREFIXES (1<<1)
149 #define XFLG_ANCHORED2ABS (1<<2) /* leading slash indicates absolute */
150 #define XFLG_ABS_IF_SLASH (1<<3) /* leading or interior slash is absolute */
151 #define XFLG_DIR2WILD3 (1<<4) /* dir/ match gets trailing *** added */
153 #define ATTRS_REPORT (1<<0)
154 #define ATTRS_SKIP_MTIME (1<<1)
157 #define NORMAL_FLUSH 0
159 #define PDIR_CREATE 1
160 #define PDIR_DELETE 0
162 /* Note: 0x00 - 0x7F are used for basis_dir[] indexes! */
163 #define FNAMECMP_BASIS_DIR_LOW 0x00 /* Must remain 0! */
164 #define FNAMECMP_BASIS_DIR_HIGH 0x7F
165 #define FNAMECMP_FNAME 0x80
166 #define FNAMECMP_PARTIAL_DIR 0x81
167 #define FNAMECMP_BACKUP 0x82
168 #define FNAMECMP_FUZZY 0x83
170 /* For use by the itemize_changes code */
171 #define ITEM_REPORT_ATIME (1<<0)
172 #define ITEM_REPORT_CHANGE (1<<1)
173 #define ITEM_REPORT_SIZE (1<<2) /* regular files only */
174 #define ITEM_REPORT_TIMEFAIL (1<<2) /* symlinks only */
175 #define ITEM_REPORT_TIME (1<<3)
176 #define ITEM_REPORT_PERMS (1<<4)
177 #define ITEM_REPORT_OWNER (1<<5)
178 #define ITEM_REPORT_GROUP (1<<6)
179 #define ITEM_REPORT_ACL (1<<7)
180 #define ITEM_REPORT_XATTR (1<<8)
181 #define ITEM_BASIS_TYPE_FOLLOWS (1<<11)
182 #define ITEM_XNAME_FOLLOWS (1<<12)
183 #define ITEM_IS_NEW (1<<13)
184 #define ITEM_LOCAL_CHANGE (1<<14)
185 #define ITEM_TRANSFER (1<<15)
186 /* These are outside the range of the transmitted flags. */
187 #define ITEM_MISSING_DATA (1<<16) /* used by log_formatted() */
188 #define ITEM_DELETED (1<<17) /* used by log_formatted() */
189 #define ITEM_MATCHED (1<<18) /* used by itemize() */
191 #define SIGNIFICANT_ITEM_FLAGS (~(\
192 ITEM_BASIS_TYPE_FOLLOWS | ITEM_XNAME_FOLLOWS | ITEM_LOCAL_CHANGE))
194 #define CFN_KEEP_DOT_DIRS (1<<0)
195 #define CFN_KEEP_TRAILING_SLASH (1<<1)
196 #define CFN_DROP_TRAILING_DOT_DIR (1<<2)
197 #define CFN_COLLAPSE_DOT_DOT_DIRS (1<<3)
200 #define SP_KEEP_DOT_DIRS (1<<0)
202 /* Log-message categories. FLOG only goes to the log file, not the client;
203 * FCLIENT is the opposite. */
205 FNONE=0, /* never sent */
206 FERROR_XFER=1, FINFO=2, /* sent over socket for any protocol */
207 FERROR=3, FWARNING=4, /* sent over socket for protocols >= 30 */
208 FERROR_SOCKET=5, FLOG=6, /* only sent via receiver -> generator pipe */
209 FCLIENT=7 /* never transmitted (e.g. server converts to FINFO) */
212 /* Messages types that are sent over the message channel. The logcode
213 * values must all be present here with identical numbers. */
215 MSG_DATA=0, /* raw data on the multiplexed stream */
216 MSG_ERROR_XFER=FERROR_XFER, MSG_INFO=FINFO, /* remote logging */
217 MSG_ERROR=FERROR, MSG_WARNING=FWARNING, /* protocol-30 remote logging */
218 MSG_ERROR_SOCKET=FERROR_SOCKET, /* sibling logging */
219 MSG_LOG=FLOG, MSG_CLIENT=FCLIENT, /* sibling logging */
220 MSG_REDO=9, /* reprocess indicated flist index */
221 MSG_FLIST=20, /* extra file list over sibling socket */
222 MSG_FLIST_EOF=21,/* we've transmitted all the file lists */
223 MSG_IO_ERROR=22,/* the sending side had an I/O error */
224 MSG_NOOP=42, /* a do-nothing message */
225 MSG_SUCCESS=100,/* successfully updated indicated flist index */
226 MSG_DELETED=101,/* successfully deleted a file on receiving side */
227 MSG_NO_SEND=102,/* sender failed to open a file we wanted */
228 MSG_DONE=86 /* current phase is done */
232 #define NDX_FLIST_EOF -2
233 #define NDX_FLIST_OFFSET -101
239 /* The default RSYNC_RSH is always set in config.h. */
242 #ifdef HAVE_SYS_TYPES_H
243 # include <sys/types.h>
245 #ifdef HAVE_SYS_STAT_H
246 # include <sys/stat.h>
252 # ifdef HAVE_STDLIB_H
257 # if !defined STDC_HEADERS && defined HAVE_MEMORY_H
262 #ifdef HAVE_STRINGS_H
263 # include <strings.h>
265 #ifdef HAVE_INTTYPES_H
266 # include <inttypes.h>
275 #ifdef HAVE_SYS_PARAM_H
276 #include <sys/param.h>
279 #if defined HAVE_MALLOC_H && (defined HAVE_MALLINFO || !defined HAVE_STDLIB_H)
283 #ifdef HAVE_SYS_SOCKET_H
284 #include <sys/socket.h>
287 #ifdef TIME_WITH_SYS_TIME
288 #include <sys/time.h>
291 #ifdef HAVE_SYS_TIME_H
292 #include <sys/time.h>
301 #ifdef HAVE_SYS_FCNTL_H
302 #include <sys/fcntl.h>
306 #ifdef HAVE_SYS_IOCTL_H
307 #include <sys/ioctl.h>
310 #ifdef HAVE_SYS_FILIO_H
311 #include <sys/filio.h>
315 #ifdef HAVE_SYS_WAIT_H
316 #include <sys/wait.h>
330 #ifdef HAVE_SYS_SELECT_H
331 #include <sys/select.h>
334 #ifdef HAVE_SYS_MODE_H
335 /* apparently AIX needs this for S_ISLNK */
337 #include <sys/mode.h>
341 /* these are needed for the uid/gid mapping code */
346 #include <netinet/in.h>
347 #include <arpa/inet.h>
352 #include <sys/file.h>
357 # define dirent direct
358 # ifdef HAVE_SYS_NDIR_H
359 # include <sys/ndir.h>
361 # ifdef HAVE_SYS_DIR_H
362 # include <sys/dir.h>
369 #ifdef MAJOR_IN_MKDEV
370 #include <sys/mkdev.h>
371 # if !defined makedev && (defined mkdev || defined _WIN32 || defined __WIN32__)
372 # define makedev mkdev
374 #elif defined MAJOR_IN_SYSMACROS
375 #include <sys/sysmacros.h>
378 #ifdef MAKEDEV_TAKES_3_ARGS
379 #define MAKEDEV(devmajor,devminor) makedev(0,devmajor,devminor)
381 #define MAKEDEV(devmajor,devminor) makedev(devmajor,devminor)
392 #if defined HAVE_ICONV_OPEN && defined HAVE_ICONV_H
412 #include "lib/pool_alloc.h"
415 typedef unsigned int id_t;
421 typedef unsigned int mode_t;
427 typedef unsigned int size_t;
433 #define uchar unsigned char
436 #ifdef SIGNED_CHAR_OK
437 #define schar signed char
443 #if SIZEOF_INT16_T == 2
444 # define int16 int16_t
451 #if SIZEOF_UINT16_T == 2
452 # define uint16 uint16_t
454 # define uint16 unsigned int16
458 /* Find a variable that is either exactly 32-bits or longer.
459 * If some code depends on 32-bit truncation, it will need to
460 * take special action in a "#if SIZEOF_INT32 > 4" section. */
462 #if SIZEOF_INT32_T == 4
463 # define int32 int32_t
464 # define SIZEOF_INT32 4
465 #elif SIZEOF_INT == 4
467 # define SIZEOF_INT32 4
468 #elif SIZEOF_LONG == 4
470 # define SIZEOF_INT32 4
471 #elif SIZEOF_SHORT == 4
473 # define SIZEOF_INT32 4
476 # define SIZEOF_INT32 SIZEOF_INT
477 #elif SIZEOF_LONG > 4
479 # define SIZEOF_INT32 SIZEOF_LONG
481 # error Could not find a 32-bit integer variable
484 # define SIZEOF_INT32 4
488 #if SIZEOF_UINT32_T == 4
489 # define uint32 uint32_t
491 # define uint32 unsigned int32
495 #if SIZEOF_OFF_T == 8 || !SIZEOF_OFF64_T || !defined HAVE_STRUCT_STAT64
497 #define STRUCT_STAT struct stat
499 #define OFF_T off64_t
500 #define STRUCT_STAT struct stat64
501 #define USE_STAT64_FUNCS 1
504 /* CAVEAT: on some systems, int64 will really be a 32-bit integer IFF
505 * that's the maximum size the file system can handle and there is no
506 * 64-bit type available. The rsync source must therefore take steps
507 * to ensure that any code that really requires a 64-bit integer has
508 * it (e.g. the checksum code uses two 32-bit integers for its 64-bit
510 #if SIZEOF_INT64_T == 8
511 # define int64 int64_t
512 # define SIZEOF_INT64 8
513 #elif SIZEOF_LONG == 8
515 # define SIZEOF_INT64 8
516 #elif SIZEOF_INT == 8
518 # define SIZEOF_INT64 8
519 #elif SIZEOF_LONG_LONG == 8
520 # define int64 long long
521 # define SIZEOF_INT64 8
522 #elif SIZEOF_OFF64_T == 8
523 # define int64 off64_t
524 # define SIZEOF_INT64 8
525 #elif SIZEOF_OFF_T == 8
527 # define SIZEOF_INT64 8
530 # define SIZEOF_INT64 SIZEOF_INT
531 #elif SIZEOF_LONG > 8
533 # define SIZEOF_INT64 SIZEOF_LONG
534 #elif SIZEOF_LONG_LONG > 8
535 # define int64 long long
536 # define SIZEOF_INT64 SIZEOF_LONG_LONG
538 /* As long as it gets... */
540 # define SIZEOF_INT64 SIZEOF_OFF_T
550 struct ht_int32_node {
555 struct ht_int64_node {
560 #define HT_NODE(tbl, bkts, i) ((void*)((char*)(bkts) + (i)*(tbl)->node_size))
561 #define HT_KEY(node, k64) ((k64)? ((struct ht_int64_node*)(node))->key \
562 : (int64)((struct ht_int32_node*)(node))->key)
565 #define MIN(a,b) ((a)<(b)?(a):(b))
569 #define MAX(a,b) ((a)>(b)?(a):(b))
572 #ifndef MAXHOSTNAMELEN
573 #define MAXHOSTNAMELEN 256
576 #define SUM_LENGTH 16
577 #define SHORT_SUM_LENGTH 2
578 #define BLOCKSUM_BIAS 10
581 #define MAXPATHLEN 1024
584 /* We want a roomy line buffer that can hold more than MAXPATHLEN,
585 * and significantly more than an overly short MAXPATHLEN. */
586 #if MAXPATHLEN < 4096
587 #define BIGPATHBUFLEN (4096+1024)
589 #define BIGPATHBUFLEN (MAXPATHLEN+1024)
597 #define INADDR_NONE 0xffffffff
600 #ifndef IN_LOOPBACKNET
601 #define IN_LOOPBACKNET 127
604 #if HAVE_UNIXWARE_ACLS|HAVE_SOLARIS_ACLS|HAVE_HPUX_ACLS
605 #define ACLS_NEED_MASK 1
614 const char *dirname; /* The dir info inside the transfer */
615 time_t modtime; /* When the item was last modified */
616 uint32 len32; /* Lowest 32 bits of the file's length */
617 uint16 mode; /* The item's type and permissions */
618 uint16 flags; /* The FLAG_* bits for this item */
619 const char basename[1]; /* The basename (AKA filename) follows */
622 extern int file_extra_cnt;
623 extern int inc_recurse;
627 extern int xattrs_ndx;
629 #define FILE_STRUCT_LEN (offsetof(struct file_struct, basename))
630 #define EXTRA_LEN (sizeof (union file_extras))
631 #define PTR_EXTRA_CNT ((sizeof (char *) + EXTRA_LEN - 1) / EXTRA_LEN)
632 #define DEV_EXTRA_CNT 2
633 #define DIRNODE_EXTRA_CNT 3
634 #define SUM_EXTRA_CNT ((MAX_DIGEST_LEN + EXTRA_LEN - 1) / EXTRA_LEN)
636 #define REQ_EXTRA(f,ndx) ((union file_extras*)(f) - (ndx))
637 #define OPT_EXTRA(f,bump) ((union file_extras*)(f) - file_extra_cnt - 1 - (bump))
639 #define LEN64_BUMP(f) ((f)->flags & FLAG_LENGTH64 ? 1 : 0)
640 #define HLINK_BUMP(f) ((f)->flags & (FLAG_HLINKED|FLAG_HLINK_DONE) ? inc_recurse+1 : 0)
641 #define ACL_BUMP(f) (acls_ndx ? 1 : 0)
643 /* The length applies to all items. */
645 #define F_LENGTH(f) ((int64)(f)->len32)
647 #define F_LENGTH(f) ((int64)(f)->len32 + ((f)->flags & FLAG_LENGTH64 \
648 ? (int64)OPT_EXTRA(f, 0)->unum << 32 : 0))
651 /* If there is a symlink string, it is always right after the basename */
652 #define F_SYMLINK(f) ((f)->basename + strlen((f)->basename) + 1)
654 /* The sending side always has this available: */
655 #define F_PATHNAME(f) (*(const char**)REQ_EXTRA(f, PTR_EXTRA_CNT))
657 /* The receiving side always has this available: */
658 #define F_DEPTH(f) REQ_EXTRA(f, 1)->num
660 /* When the associated option is on, all entries will have these present: */
661 #define F_OWNER(f) REQ_EXTRA(f, uid_ndx)->unum
662 #define F_GROUP(f) REQ_EXTRA(f, gid_ndx)->unum
663 #define F_ACL(f) REQ_EXTRA(f, acls_ndx)->num
664 #define F_XATTR(f) REQ_EXTRA(f, xattrs_ndx)->num
665 #define F_NDX(f) REQ_EXTRA(f, unsort_ndx)->num
667 /* These items are per-entry optional: */
668 #define F_HL_GNUM(f) OPT_EXTRA(f, LEN64_BUMP(f))->num /* non-dirs */
669 #define F_HL_PREV(f) OPT_EXTRA(f, LEN64_BUMP(f)+inc_recurse)->num /* non-dirs */
670 #define F_DIR_NODE_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) \
671 + DIRNODE_EXTRA_CNT - 1)->num) /* sender dirs */
672 #define F_DIR_RELNAMES_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) + DIRNODE_EXTRA_CNT \
673 + PTR_EXTRA_CNT - 1)->num) /* sender dirs */
674 #define F_DIR_DEFACL(f) OPT_EXTRA(f, LEN64_BUMP(f))->unum /* receiver dirs */
675 #define F_DIR_DEV_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) + ACL_BUMP(f) \
676 + DEV_EXTRA_CNT - 1)->unum) /* receiver dirs */
678 /* This optional item might follow an F_HL_*() item.
679 * (Note: a device doesn't need to check LEN64_BUMP(f).) */
680 #define F_RDEV_P(f) (&OPT_EXTRA(f, HLINK_BUMP(f) + DEV_EXTRA_CNT - 1)->unum)
682 /* The sum is only present on regular files. */
683 #define F_SUM(f) ((char*)OPT_EXTRA(f, LEN64_BUMP(f) + HLINK_BUMP(f) \
684 + SUM_EXTRA_CNT - 1))
686 /* Some utility defines: */
687 #define F_IS_ACTIVE(f) (f)->basename[0]
688 #define F_IS_HLINKED(f) ((f)->flags & FLAG_HLINKED)
690 #define F_HLINK_NOT_FIRST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_FIRST)
691 #define F_HLINK_NOT_LAST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_LAST)
693 /* These access the F_DIR_DEV_P() and F_RDEV_P() values: */
694 #define DEV_MAJOR(a) (a)[0]
695 #define DEV_MINOR(a) (a)[1]
697 /* These access the F_DIRS_NODE_P() values: */
698 #define DIR_PARENT(a) (a)[0]
699 #define DIR_FIRST_CHILD(a) (a)[1]
700 #define DIR_NEXT_SIBLING(a) (a)[2]
703 * Start the flist array at FLIST_START entries and grow it
704 * by doubling until FLIST_LINEAR then grow by FLIST_LINEAR
706 #define FLIST_START (32 * 1024)
707 #define FLIST_LINEAR (FLIST_START * 512)
710 * Extent size for allocation pools: A minimum size of 128KB
711 * is needed to mmap them so that freeing will release the
714 * Larger sizes reduce leftover fragments and speed free calls
715 * (when they happen). Smaller sizes increase the chance of
716 * freed allocations freeing whole extents.
718 #define NORMAL_EXTENT (256 * 1024)
719 #define SMALL_EXTENT (128 * 1024)
721 #define FLIST_TEMP (1<<1)
724 struct file_list *next, *prev;
725 struct file_struct **files, **sorted;
726 alloc_pool_t file_pool;
729 int low, high; /* 0-relative index values excluding empties */
730 int ndx_start; /* the start offset for inc_recurse mode */
731 int flist_num; /* 1-relative file_list number or 0 */
732 int parent_ndx; /* dir_flist index of parent directory */
733 int in_progress, to_redo;
736 #define SUMFLG_SAME_OFFSET (1<<0)
739 OFF_T offset; /**< offset in file of this chunk */
740 int32 len; /**< length of chunk of file */
741 uint32 sum1; /**< simple checksum */
742 int32 chain; /**< next hash-table collision */
743 short flags; /**< flag bits */
744 char sum2[SUM_LENGTH]; /**< checksum */
748 OFF_T flength; /**< total file length */
749 struct sum_buf *sums; /**< points to info for each chunk */
750 int32 count; /**< how many chunks */
751 int32 blength; /**< block_length */
752 int32 remainder; /**< flength % block_length */
753 int s2length; /**< sum2_length */
757 OFF_T file_size; /* File size (from stat) */
758 OFF_T p_offset; /* Window start */
759 OFF_T p_fd_offset; /* offset of cursor in fd ala lseek */
760 char *p; /* Window pointer */
761 int32 p_size; /* Largest window size we allocated */
762 int32 p_len; /* Latest (rounded) window size */
763 int32 def_window_size; /* Default window size */
764 int fd; /* File Descriptor */
765 int status; /* first errno from read errors */
768 #define MATCHFLG_WILD (1<<0) /* pattern has '*', '[', and/or '?' */
769 #define MATCHFLG_WILD2 (1<<1) /* pattern has '**' */
770 #define MATCHFLG_WILD2_PREFIX (1<<2) /* pattern starts with "**" */
771 #define MATCHFLG_WILD3_SUFFIX (1<<3) /* pattern ends with "***" */
772 #define MATCHFLG_ABS_PATH (1<<4) /* path-match on absolute path */
773 #define MATCHFLG_INCLUDE (1<<5) /* this is an include, not an exclude */
774 #define MATCHFLG_DIRECTORY (1<<6) /* this matches only directories */
775 #define MATCHFLG_WORD_SPLIT (1<<7) /* split rules on whitespace */
776 #define MATCHFLG_NO_INHERIT (1<<8) /* don't inherit these rules */
777 #define MATCHFLG_NO_PREFIXES (1<<9) /* parse no prefixes from patterns */
778 #define MATCHFLG_MERGE_FILE (1<<10)/* specifies a file to merge */
779 #define MATCHFLG_PERDIR_MERGE (1<<11)/* merge-file is searched per-dir */
780 #define MATCHFLG_EXCLUDE_SELF (1<<12)/* merge-file name should be excluded */
781 #define MATCHFLG_FINISH_SETUP (1<<13)/* per-dir merge file needs setup */
782 #define MATCHFLG_NEGATE (1<<14)/* rule matches when pattern does not */
783 #define MATCHFLG_CVS_IGNORE (1<<15)/* rule was -C or :C */
784 #define MATCHFLG_SENDER_SIDE (1<<16)/* rule applies to the sending side */
785 #define MATCHFLG_RECEIVER_SIDE (1<<17)/* rule applies to the receiving side */
786 #define MATCHFLG_CLEAR_LIST (1<<18)/* this item is the "!" token */
787 #define MATCHFLG_PERISHABLE (1<<19)/* perishable if parent dir goes away */
789 #define MATCHFLGS_FROM_CONTAINER (MATCHFLG_ABS_PATH | MATCHFLG_INCLUDE \
790 | MATCHFLG_DIRECTORY | MATCHFLG_SENDER_SIDE \
791 | MATCHFLG_NEGATE | MATCHFLG_RECEIVER_SIDE \
792 | MATCHFLG_PERISHABLE)
794 struct filter_struct {
795 struct filter_struct *next;
800 struct filter_list_struct *mergelist;
804 struct filter_list_struct {
805 struct filter_struct *head;
806 struct filter_struct *tail;
812 int64 total_transferred_size;
817 int64 flist_buildtime;
818 int64 flist_xfertime;
821 int num_transferred_files;
824 struct chmod_mode_struct;
826 #define EMPTY_ITEM_LIST {NULL, 0, 0}
834 #define EXPAND_ITEM_LIST(lp, type, incr) \
835 (type*)expand_item_list(lp, sizeof (type), #type, incr)
837 #define EMPTY_XBUF {NULL, 0, 0, 0}
841 size_t pos; /* pos = read pos in the buf */
842 size_t len; /* len = chars following pos */
843 size_t size; /* size = total space in buf */
846 #define INIT_XBUF(xb, str, ln, sz) (xb).buf = (str), (xb).len = (ln), (xb).size = (sz), (xb).pos = 0
847 #define INIT_XBUF_STRLEN(xb, str) (xb).buf = (str), (xb).len = strlen((xb).buf), (xb).size = (-1), (xb).pos = 0
848 /* This one is used to make an output xbuf based on a char[] buffer: */
849 #define INIT_CONST_XBUF(xb, bf) (xb).buf = (bf), (xb).size = sizeof (bf), (xb).len = (xb).pos = 0
851 #define ICB_EXPAND_OUT (1<<0)
852 #define ICB_INCLUDE_BAD (1<<1)
853 #define ICB_INCLUDE_INCOMPLETE (1<<2)
855 #define RL_EOL_NULLS (1<<0)
856 #define RL_DUMP_COMMENTS (1<<1)
857 #define RL_CONVERT (1<<2)
861 char fname[1]; /* has variable size */
864 #include "byteorder.h"
865 #include "lib/mdigest.h"
866 #include "lib/wildmatch.h"
867 #include "lib/permstring.h"
868 #include "lib/addrinfo.h"
871 #define __attribute__(x)
878 #define UNUSED(x) x __attribute__((__unused__))
880 #define NORETURN __attribute__((__noreturn__))
886 struct rsync_acl *acc_acl; /* access ACL */
887 struct rsync_acl *def_acl; /* default ACL */
889 #ifdef SUPPORT_XATTRS
894 #define ACL_READY(sx) ((sx).acc_acl != NULL)
895 #define XATTR_READY(sx) ((sx).xattr != NULL)
899 #ifndef SUPPORT_XATTRS
900 #define x_stat(fn,fst,xst) do_stat(fn,fst)
901 #define x_lstat(fn,fst,xst) do_lstat(fn,fst)
902 #define x_fstat(fd,fst,xst) do_fstat(fd,fst)
905 /* We have replacement versions of these if they're missing. */
906 #ifndef HAVE_ASPRINTF
907 int asprintf(char **ptr, const char *format, ...);
910 #ifndef HAVE_VASPRINTF
911 int vasprintf(char **ptr, const char *format, va_list ap);
914 #if !defined HAVE_VSNPRINTF || !defined HAVE_C99_VSNPRINTF
915 #define vsnprintf rsync_vsnprintf
916 int vsnprintf(char *str, size_t count, const char *fmt, va_list args);
919 #if !defined HAVE_SNPRINTF || !defined HAVE_C99_VSNPRINTF
920 #define snprintf rsync_snprintf
921 int snprintf(char *str, size_t count, const char *fmt,...);
925 #ifndef HAVE_STRERROR
926 extern char *sys_errlist[];
927 #define strerror(i) sys_errlist[i]
931 # define strchr index
932 # define strrchr rindex
935 #ifndef HAVE_ERRNO_DECL
940 #define SUPPORT_LINKS 1
943 #define SUPPORT_HARD_LINKS 1
946 #ifdef HAVE_SIGACTION
947 #define SIGACTION(n,h) sigact.sa_handler=(h), sigaction((n),&sigact,NULL)
948 #define signal(n,h) we_need_to_call_SIGACTION_not_signal(n,h)
950 #define SIGACTION(n,h) signal(n,h)
954 #define EWOULDBLOCK EAGAIN
958 #define STDIN_FILENO 0
961 #ifndef STDOUT_FILENO
962 #define STDOUT_FILENO 1
965 #ifndef STDERR_FILENO
966 #define STDERR_FILENO 2
978 #define ACCESSPERMS 0777
985 #define CHMOD_BITS (S_ISUID | S_ISGID | S_ISVTX | ACCESSPERMS)
988 #define _S_IFMT 0170000
992 #define _S_IFLNK 0120000
996 #define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK))
1000 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
1004 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
1009 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
1011 #define S_ISSOCK(mode) (0)
1017 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
1019 #define S_ISFIFO(mode) (0)
1024 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
1028 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
1031 /* work out what fcntl flag to use for non-blocking */
1033 # define NONBLOCK_FLAG O_NONBLOCK
1035 # define NONBLOCK_FLAG O_NDELAY
1037 # define NONBLOCK_FLAG FNDELAY
1040 #ifndef INADDR_LOOPBACK
1041 #define INADDR_LOOPBACK 0x7f000001
1045 #define INADDR_NONE 0xffffffff
1048 #define IS_SPECIAL(mode) (S_ISSOCK(mode) || S_ISFIFO(mode))
1049 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode))
1051 /* Initial mask on permissions given to temporary files. Mask off setuid
1052 bits and group access because of potential race-condition security
1053 holes, and mask other access because mode 707 is bizarre */
1054 #define INITACCESSPERMS 0700
1056 /* handler for null strings in printf format */
1057 #define NS(s) ((s)?(s):"<NULL>")
1059 /* Convenient wrappers for malloc and realloc. Use them. */
1060 #define new(type) ((type*)malloc(sizeof (type)))
1061 #define new0(type) ((type*)calloc(1, sizeof (type)))
1062 #define new_array(type, num) ((type*)_new_array((num), sizeof (type), 0))
1063 #define new_array0(type, num) ((type*)_new_array((num), sizeof (type), 1))
1064 #define realloc_array(ptr, type, num) ((type*)_realloc_array((ptr), sizeof(type), (num)))
1066 /* use magic gcc attributes to catch format errors */
1067 void rprintf(enum logcode , const char *, ...)
1068 __attribute__((format (printf, 2, 3)))
1071 /* This is just like rprintf, but it also tries to print some
1072 * representation of the error code. Normally errcode = errno. */
1073 void rsyserr(enum logcode, int, const char *, ...)
1074 __attribute__((format (printf, 3, 4)))
1077 /* Make sure that the O_BINARY flag is defined. */
1082 #ifndef HAVE_STRLCPY
1083 size_t strlcpy(char *d, const char *s, size_t bufsize);
1086 #ifndef HAVE_STRLCAT
1087 size_t strlcat(char *d, const char *s, size_t bufsize);
1091 #define WEXITSTATUS(stat) ((int)(((stat)>>8)&0xFF))
1094 #define WIFEXITED(stat) ((int)((stat)&0xFF) == 0)
1097 #define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__)
1100 #define MY_UID() geteuid()
1102 #define MY_UID() getuid()
1106 #define MY_GID() getegid()
1108 #define MY_GID() getgid()
1111 #ifdef FORCE_FD_ZERO_MEMSET
1113 #define FD_ZERO(fdsetp) memset(fdsetp, 0, sizeof (fd_set))
1118 #ifndef HAVE_INET_NTOP
1119 const char *inet_ntop(int af, const void *src, char *dst, size_t size);
1122 #ifndef HAVE_INET_PTON
1123 int inet_pton(int af, const char *src, void *dst);
1126 #ifdef MAINTAINER_MODE
1127 const char *get_panic_action(void);