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, 2004, 2005, 2006 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 2 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, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
25 #define BLOCK_SIZE 700
26 #define RSYNC_RSH_ENV "RSYNC_RSH"
27 #define RSYNC_RSH_IO_ENV "RSYNC_RSH_IO"
29 #define RSYNC_NAME "rsync"
30 /* RSYNCD_SYSCONF is now set in config.h */
31 #define RSYNCD_USERCONF "rsyncd.conf"
33 #define DEFAULT_LOCK_FILE "/var/run/rsyncd.lock"
34 #define URL_PREFIX "rsync://"
36 #define BACKUP_SUFFIX "~"
38 /* a non-zero CHAR_OFFSET makes the rolling sum stronger, but is
39 incompatible with older versions :-( */
42 /* These flags are only used during the flist transfer. */
44 #define XMIT_TOP_DIR (1<<0)
45 #define XMIT_SAME_MODE (1<<1)
46 #define XMIT_EXTENDED_FLAGS (1<<2)
47 #define XMIT_SAME_RDEV_pre28 XMIT_EXTENDED_FLAGS /* Only in protocols < 28 */
48 #define XMIT_SAME_UID (1<<3)
49 #define XMIT_SAME_GID (1<<4)
50 #define XMIT_SAME_NAME (1<<5)
51 #define XMIT_LONG_NAME (1<<6)
52 #define XMIT_SAME_TIME (1<<7)
53 #define XMIT_SAME_RDEV_MAJOR (1<<8)
54 #define XMIT_HAS_IDEV_DATA (1<<9)
55 #define XMIT_SAME_DEV (1<<10)
56 #define XMIT_RDEV_MINOR_IS_SMALL (1<<11)
58 /* These flags are used in the live flist data. */
60 #define FLAG_TOP_DIR (1<<0) /* sender/receiver/generator */
61 #define FLAG_SENT (1<<1) /* sender/generator */
62 #define FLAG_XFER_DIR (1<<2) /* sender/receiver/generator */
63 #define FLAG_MOUNT_DIR (1<<3) /* sender/generator */
64 #define FLAG_MISSING_DIR (1<<4) /* generator */
65 #define FLAG_HLINKED (1<<5) /* receiver/generator */
66 #define FLAG_HLINK_FIRST (1<<6) /* receiver/generator */
67 #define FLAG_HLINK_LAST (1<<7) /* receiver/generator */
68 #define FLAG_HLINK_DONE (1<<8) /* receiver/generator */
69 #define FLAG_LENGTH64 (1<<9) /* sender/receiver/generator */
71 #define BITS_SET(val,bits) (((val) & (bits)) == (bits))
72 #define BITS_SETnUNSET(val,onbits,offbits) (((val) & ((onbits)|(offbits))) == (onbits))
73 #define BITS_EQUAL(b1,b2,mask) (((unsigned)(b1) & (unsigned)(mask)) \
74 == ((unsigned)(b2) & (unsigned)(mask)))
76 /* update this if you make incompatible changes */
77 #define PROTOCOL_VERSION 30
79 /* We refuse to interoperate with versions that are not in this range.
80 * Note that we assume we'll work with later versions: the onus is on
81 * people writing them to make sure that they don't send us anything
82 * we won't understand.
84 * Interoperation with old but supported protocol versions
85 * should cause a warning to be printed. At a future date
86 * the old protocol will become the minimum and
87 * compatibility code removed.
89 * There are two possible explanations for the limit at
90 * MAX_PROTOCOL_VERSION: either to allow new major-rev versions that
91 * do not interoperate with us, and (more likely) so that we can
92 * detect an attempt to connect rsync to a non-rsync server, which is
93 * unlikely to begin by sending a byte between MIN_PROTOCL_VERSION and
94 * MAX_PROTOCOL_VERSION. */
96 #define MIN_PROTOCOL_VERSION 20
97 #define OLD_PROTOCOL_VERSION 25
98 #define MAX_PROTOCOL_VERSION 40
100 #define RSYNC_PORT 873
102 #define SPARSE_WRITE_SIZE (1024)
103 #define WRITE_SIZE (32*1024)
104 #define CHUNK_SIZE (32*1024)
105 #define MAX_MAP_SIZE (256*1024)
106 #define IO_BUFFER_SIZE (4092)
107 #define MAX_BLOCK_SIZE ((int32)1 << 29)
109 #define IOERR_GENERAL (1<<0) /* For backward compatibility, this must == 1 */
110 #define IOERR_VANISHED (1<<1)
111 #define IOERR_DEL_LIMIT (1<<2)
113 #define MAX_ARGS 1000
114 #define MAX_BASIS_DIRS 20
115 #define MAX_SERVER_ARGS (MAX_BASIS_DIRS*2 + 100)
120 #define SERVER_FILTERS 1
121 #define ALL_FILTERS 2
123 #define XFLG_FATAL_ERRORS (1<<0)
124 #define XFLG_OLD_PREFIXES (1<<1)
125 #define XFLG_ANCHORED2ABS (1<<2)
126 #define XFLG_ABS_IF_SLASH (1<<3)
128 #define ATTRS_REPORT (1<<0)
129 #define ATTRS_SKIP_MTIME (1<<1)
132 #define NORMAL_FLUSH 0
134 #define PDIR_CREATE 1
135 #define PDIR_DELETE 0
137 /* Note: 0x00 - 0x7F are used for basis_dir[] indexes! */
138 #define FNAMECMP_BASIS_DIR_LOW 0x00 /* Must remain 0! */
139 #define FNAMECMP_BASIS_DIR_HIGH 0x7F
140 #define FNAMECMP_FNAME 0x80
141 #define FNAMECMP_PARTIAL_DIR 0x81
142 #define FNAMECMP_BACKUP 0x82
143 #define FNAMECMP_FUZZY 0x83
145 /* For use by the itemize_changes code */
146 #define ITEM_REPORT_ATIME (1<<0)
147 #define ITEM_REPORT_CHECKSUM (1<<1)
148 #define ITEM_REPORT_SIZE (1<<2)
149 #define ITEM_REPORT_TIME (1<<3)
150 #define ITEM_REPORT_PERMS (1<<4)
151 #define ITEM_REPORT_OWNER (1<<5)
152 #define ITEM_REPORT_GROUP (1<<6)
153 #define ITEM_REPORT_ACL (1<<7)
154 #define ITEM_REPORT_XATTR (1<<8)
155 #define ITEM_BASIS_TYPE_FOLLOWS (1<<11)
156 #define ITEM_XNAME_FOLLOWS (1<<12)
157 #define ITEM_IS_NEW (1<<13)
158 #define ITEM_LOCAL_CHANGE (1<<14)
159 #define ITEM_TRANSFER (1<<15)
160 /* These are outside the range of the transmitted flags. */
161 #define ITEM_MISSING_DATA (1<<16) /* used by log_formatted() */
162 #define ITEM_DELETED (1<<17) /* used by log_formatted() */
163 #define ITEM_MATCHED (1<<18) /* used by itemize() */
165 #define SIGNIFICANT_ITEM_FLAGS (~(\
166 ITEM_BASIS_TYPE_FOLLOWS | ITEM_XNAME_FOLLOWS | ITEM_LOCAL_CHANGE))
169 /* Log-message categories. Only FERROR and FINFO get sent over the socket,
170 * but FLOG and FSOCKERR can be sent over the receiver -> generator pipe.
171 * FLOG only goes to the log file, not the client; FCLIENT is the opposite. */
172 enum logcode { FNONE=0, FERROR=1, FINFO=2, FLOG=3, FCLIENT=4, FSOCKERR=5 };
174 /* Messages types that are sent over the message channel. The logcode
175 * values must all be present here with identical numbers. */
177 MSG_DATA=0, /* raw data on the multiplexed stream */
178 MSG_ERROR=FERROR, MSG_INFO=FINFO, /* remote logging */
179 MSG_LOG=FLOG, MSG_CLIENT=FCLIENT, MSG_SOCKERR=FSOCKERR, /* sibling logging */
180 MSG_REDO=9, /* reprocess indicated flist index */
181 MSG_SUCCESS=100,/* successfully updated indicated flist index */
182 MSG_DELETED=101,/* successfully deleted a file on receiving side */
183 MSG_DONE=86 /* current phase is done */
192 /* The default RSYNC_RSH is always set in config.h. */
195 #ifdef HAVE_SYS_TYPES_H
196 # include <sys/types.h>
198 #ifdef HAVE_SYS_STAT_H
199 # include <sys/stat.h>
205 # ifdef HAVE_STDLIB_H
210 # if !defined STDC_HEADERS && defined HAVE_MEMORY_H
215 #ifdef HAVE_STRINGS_H
216 # include <strings.h>
222 #ifdef HAVE_SYS_PARAM_H
223 #include <sys/param.h>
226 #if defined HAVE_MALLOC_H && (defined HAVE_MALLINFO || !defined HAVE_STDLIB_H)
230 #ifdef HAVE_SYS_SOCKET_H
231 #include <sys/socket.h>
234 #ifdef TIME_WITH_SYS_TIME
235 #include <sys/time.h>
238 #ifdef HAVE_SYS_TIME_H
239 #include <sys/time.h>
248 #ifdef HAVE_SYS_FCNTL_H
249 #include <sys/fcntl.h>
253 #ifdef HAVE_SYS_IOCTL_H
254 #include <sys/ioctl.h>
257 #ifdef HAVE_SYS_FILIO_H
258 #include <sys/filio.h>
262 #ifdef HAVE_SYS_WAIT_H
263 #include <sys/wait.h>
277 #ifdef HAVE_SYS_SELECT_H
278 #include <sys/select.h>
281 #ifdef HAVE_SYS_MODE_H
282 /* apparently AIX needs this for S_ISLNK */
284 #include <sys/mode.h>
292 /* these are needed for the uid/gid mapping code */
297 #include <netinet/in.h>
298 #include <arpa/inet.h>
301 #include <sys/file.h>
306 # define dirent direct
307 # ifdef HAVE_SYS_NDIR_H
308 # include <sys/ndir.h>
310 # ifdef HAVE_SYS_DIR_H
311 # include <sys/dir.h>
318 #ifdef MAJOR_IN_MKDEV
319 #include <sys/mkdev.h>
320 # if !defined makedev && (defined mkdev || defined _WIN32 || defined __WIN32__)
321 # define makedev mkdev
323 #elif defined MAJOR_IN_SYSMACROS
324 #include <sys/sysmacros.h>
327 #ifdef MAKEDEV_TAKES_3_ARGS
328 #define MAKEDEV(devmajor,devminor) makedev(0,devmajor,devminor)
330 #define MAKEDEV(devmajor,devminor) makedev(devmajor,devminor)
343 #include "lib/pool_alloc.h"
348 #define uchar unsigned char
351 #ifdef SIGNED_CHAR_OK
352 #define schar signed char
357 /* Find a variable that is either exactly 32-bits or longer.
358 * If some code depends on 32-bit truncation, it will need to
359 * take special action in a "#if SIZEOF_INT32 > 4" section. */
363 # define SIZEOF_INT32 4
364 #elif SIZEOF_LONG == 4
366 # define SIZEOF_INT32 4
367 #elif SIZEOF_SHORT == 4
369 # define SIZEOF_INT32 4
372 # define SIZEOF_INT32 SIZEOF_INT
373 #elif SIZEOF_LONG > 4
375 # define SIZEOF_INT32 SIZEOF_LONG
377 # error Could not find a 32-bit integer variable
380 # define SIZEOF_INT32 4
384 #define uint32 unsigned int32
387 #if SIZEOF_OFF_T == 8 || !SIZEOF_OFF64_T || !defined HAVE_STRUCT_STAT64
389 #define STRUCT_STAT struct stat
391 #define OFF_T off64_t
392 #define STRUCT_STAT struct stat64
393 #define USE_STAT64_FUNCS 1
396 /* CAVEAT: on some systems, int64 will really be a 32-bit integer IFF
397 * that's the maximum size the file system can handle and there is no
398 * 64-bit type available. The rsync source must therefore take steps
399 * to ensure that any code that really requires a 64-bit integer has
400 * it (e.g. the checksum code uses two 32-bit integers for its 64-bit
404 # define SIZEOF_INT64 8
405 #elif SIZEOF_INT == 8
407 # define SIZEOF_INT64 8
408 #elif SIZEOF_LONG_LONG == 8
409 # define int64 long long
410 # define SIZEOF_INT64 8
411 #elif SIZEOF_OFF64_T == 8
412 # define int64 off64_t
413 # define SIZEOF_INT64 8
414 #elif SIZEOF_OFF_T == 8
416 # define SIZEOF_INT64 8
419 # define SIZEOF_INT64 SIZEOF_INT
420 #elif SIZEOF_LONG > 8
422 # define SIZEOF_INT64 SIZEOF_LONG
423 #elif SIZEOF_LONG_LONG > 8
424 # define int64 long long
425 # define SIZEOF_INT64 SIZEOF_LONG_LONG
427 /* As long as it gets... */
429 # define SIZEOF_INT64 SIZEOF_OFF_T
432 /* Starting from protocol version 26, we always use 64-bit
433 * ino_t and dev_t internally, even if this platform does not
434 * allow files to have 64-bit inums. That's because the
435 * receiver needs to find duplicate (dev,ino) tuples to detect
436 * hardlinks, and it might have files coming from a platform
437 * that has 64-bit inums.
439 * The only exception is if we're on a platform with no 64-bit type at
442 * Because we use read_longint() to get these off the wire, if you
443 * transfer devices or hardlinks with dev or inum > 2**32 to a machine
444 * with no 64-bit types then you will get an overflow error. Probably
445 * not many people have that combination of machines, and you can
446 * avoid it by not preserving hardlinks or not transferring device
447 * nodes. It's not clear that any other behaviour is better.
449 * Note that if you transfer devices from a 64-bit-devt machine (say,
450 * Solaris) to a 32-bit-devt machine (say, Linux-2.2/x86) then the
451 * device numbers will be truncated. But it's a kind of silly thing
454 * FIXME: I don't think the code in flist.c has ever worked on a system
455 * where dev_t is a struct.
464 #define MIN(a,b) ((a)<(b)?(a):(b))
468 #define MAX(a,b) ((a)>(b)?(a):(b))
471 #ifndef MAXHOSTNAMELEN
472 #define MAXHOSTNAMELEN 256
475 /* the length of the md4 checksum */
476 #define MD4_SUM_LENGTH 16
477 #define SUM_LENGTH 16
478 #define SHORT_SUM_LENGTH 2
479 #define BLOCKSUM_BIAS 10
482 #define MAXPATHLEN 1024
485 /* We want a roomy line buffer that can hold more than MAXPATHLEN,
486 * and significantly more than an overly short MAXPATHLEN. */
487 #if MAXPATHLEN < 4096
488 #define BIGPATHBUFLEN (4096+1024)
490 #define BIGPATHBUFLEN (MAXPATHLEN+1024)
498 #define INADDR_NONE 0xffffffff
501 #ifndef IN_LOOPBACKNET
502 #define IN_LOOPBACKNET 127
505 #define GID_NONE ((gid_t)-1)
509 uid_t uid; /* The user ID number */
510 uid_t gid; /* The group ID number or GID_NONE */
511 struct idev *idev; /* The hard-link info during matching */
512 int32 num; /* A signed number */
513 uint32 unum; /* An unsigned number */
515 time_t modtime; /* When the item was last modified */
516 const char *dirname; /* The dir info inside the transfer */
518 const char *root; /* Sender-side dir info outside transfer */
519 int32 depth; /* Receiver-side directory depth info */
521 uint32 len32; /* Lowest 32 bits of the file's length */
522 unsigned short mode; /* The item's type and permissions */
523 unsigned short flags; /* This item MUST remain last! */
526 extern int flist_extra_cnt;
527 extern int preserve_uid;
528 extern int preserve_gid;
530 #define FILE_STRUCT_LEN (offsetof(struct file_struct, flags) \
531 + sizeof (unsigned short))
532 #define EXTRA_LEN (sizeof (union flist_extras))
533 #define SUM_EXTRA_CNT ((MD4_SUM_LENGTH + EXTRA_LEN - 1) / EXTRA_LEN)
535 #define REQ_EXTRA(f,ndx) ((f)->extras - (ndx - 1))
536 #define OPT_EXTRA(f,bump) ((f)->extras - flist_extra_cnt - (bump))
538 #define LEN64_BUMP(f) ((f)->flags & FLAG_LENGTH64 ? 1 : 0)
539 #define HLINK_BUMP(f) (F_IS_HLINKED(f) ? 1 : 0)
541 /* Basename (AKA filename) and length applies to all items */
542 #define F_BASENAME(f) ((const char*)(f) + FILE_STRUCT_LEN)
544 #define F_LENGTH(f) ((int64)(f)->len32)
546 #define F_LENGTH(f) ((int64)(f)->len32 + ((f)->flags & FLAG_LENGTH64 \
547 ? (int64)OPT_EXTRA(f, 0)->unum << 32 : 0))
550 /* If there is a symlink string, it is always right after the basename */
551 #define F_SYMLINK(f) (F_BASENAME(f) + strlen(F_BASENAME(f)) + 1)
553 /* When the associated option is on, all entries will have these present: */
554 #define F_UID(f) REQ_EXTRA(f, preserve_uid)->uid
555 #define F_GID(f) REQ_EXTRA(f, preserve_gid)->gid
557 /* These items are per-entry optional and mutally exclusive: */
558 #define F_HL_IDEV(f) OPT_EXTRA(f, LEN64_BUMP(f))->idev
559 #define F_HL_PREV(f) OPT_EXTRA(f, LEN64_BUMP(f))->num
561 /* This optional item might follow an F_HL_*() item.
562 * (Note: a device doesn't need to check LEN64_BUMP(f).) */
563 #define F_RDEV_P(f) (&OPT_EXTRA(f, HLINK_BUMP(f) + 2 - 1)->unum)
565 /* The sum is only present on regular files. */
566 #define F_SUM(f) ((const char*)OPT_EXTRA(f, LEN64_BUMP(f) + HLINK_BUMP(f) \
567 + SUM_EXTRA_CNT - 1))
569 /* Some utility defines: */
570 #define F_IS_ACTIVE(f) F_BASENAME(f)[0]
571 #define F_IS_HLINKED(f) ((f)->flags & FLAG_HLINKED)
572 #define F_NOT_HLINK_FIRST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_FIRST)
573 #define F_NOT_HLINK_LAST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_LAST)
575 #define DEV_MAJOR(a) (a)[0]
576 #define DEV_MINOR(a) (a)[1]
579 * Start the flist array at FLIST_START entries and grow it
580 * by doubling until FLIST_LINEAR then grow by FLIST_LINEAR
582 #define FLIST_START (32 * 1024)
583 #define FLIST_LINEAR (FLIST_START * 512)
586 * Extent size for allocation pools: A minimum size of 128KB
587 * is needed to mmap them so that freeing will release the
590 * Larger sizes reduce leftover fragments and speed free calls
591 * (when they happen). Smaller sizes increase the chance of
592 * freed allocations freeing whole extents.
594 #define FILE_EXTENT (256 * 1024)
595 #define HLINK_EXTENT (128 * 1024)
598 struct file_struct **files;
599 alloc_pool_t file_pool;
601 int low, high; /* 0-relative index values excluding empties */
604 #define SUMFLG_SAME_OFFSET (1<<0)
607 OFF_T offset; /**< offset in file of this chunk */
608 int32 len; /**< length of chunk of file */
609 uint32 sum1; /**< simple checksum */
610 int32 chain; /**< next hash-table collision */
611 short flags; /**< flag bits */
612 char sum2[SUM_LENGTH]; /**< checksum */
616 OFF_T flength; /**< total file length */
617 struct sum_buf *sums; /**< points to info for each chunk */
618 int32 count; /**< how many chunks */
619 int32 blength; /**< block_length */
620 int32 remainder; /**< flength % block_length */
621 int s2length; /**< sum2_length */
625 OFF_T file_size; /* File size (from stat) */
626 OFF_T p_offset; /* Window start */
627 OFF_T p_fd_offset; /* offset of cursor in fd ala lseek */
628 char *p; /* Window pointer */
629 int32 p_size; /* Largest window size we allocated */
630 int32 p_len; /* Latest (rounded) window size */
631 int32 def_window_size; /* Default window size */
632 int fd; /* File Descriptor */
633 int status; /* first errno from read errors */
636 #define MATCHFLG_WILD (1<<0) /* pattern has '*', '[', and/or '?' */
637 #define MATCHFLG_WILD2 (1<<1) /* pattern has '**' */
638 #define MATCHFLG_WILD2_PREFIX (1<<2) /* pattern starts with "**" */
639 #define MATCHFLG_WILD3_SUFFIX (1<<3) /* pattern ends with "***" */
640 #define MATCHFLG_ABS_PATH (1<<4) /* path-match on absolute path */
641 #define MATCHFLG_INCLUDE (1<<5) /* this is an include, not an exclude */
642 #define MATCHFLG_DIRECTORY (1<<6) /* this matches only directories */
643 #define MATCHFLG_WORD_SPLIT (1<<7) /* split rules on whitespace */
644 #define MATCHFLG_NO_INHERIT (1<<8) /* don't inherit these rules */
645 #define MATCHFLG_NO_PREFIXES (1<<9) /* parse no prefixes from patterns */
646 #define MATCHFLG_MERGE_FILE (1<<10)/* specifies a file to merge */
647 #define MATCHFLG_PERDIR_MERGE (1<<11)/* merge-file is searched per-dir */
648 #define MATCHFLG_EXCLUDE_SELF (1<<12)/* merge-file name should be excluded */
649 #define MATCHFLG_FINISH_SETUP (1<<13)/* per-dir merge file needs setup */
650 #define MATCHFLG_NEGATE (1<<14)/* rule matches when pattern does not */
651 #define MATCHFLG_CVS_IGNORE (1<<15)/* rule was -C or :C */
652 #define MATCHFLG_SENDER_SIDE (1<<16)/* rule applies to the sending side */
653 #define MATCHFLG_RECEIVER_SIDE (1<<17)/* rule applies to the receiving side */
654 #define MATCHFLG_CLEAR_LIST (1<<18)/* this item is the "!" token */
655 #define MATCHFLG_PERISHABLE (1<<19)/* perishable if parent dir goes away */
657 #define MATCHFLGS_FROM_CONTAINER (MATCHFLG_ABS_PATH | MATCHFLG_INCLUDE \
658 | MATCHFLG_DIRECTORY | MATCHFLG_SENDER_SIDE \
659 | MATCHFLG_NEGATE | MATCHFLG_RECEIVER_SIDE \
660 | MATCHFLG_PERISHABLE)
662 struct filter_struct {
663 struct filter_struct *next;
668 struct filter_list_struct *mergelist;
672 struct filter_list_struct {
673 struct filter_struct *head;
674 struct filter_struct *tail;
680 int64 total_transferred_size;
685 int64 flist_buildtime;
686 int64 flist_xfertime;
689 int num_transferred_files;
690 int current_file_index;
693 struct chmod_mode_struct;
695 #include "byteorder.h"
696 #include "lib/mdfour.h"
697 #include "lib/wildmatch.h"
698 #include "lib/permstring.h"
699 #include "lib/addrinfo.h"
702 #define __attribute__(x)
708 #define UNUSED(x) x __attribute__((__unused__))
710 #define NORETURN __attribute__((__noreturn__))
715 /* We have replacement versions of these if they're missing. */
716 #ifndef HAVE_ASPRINTF
717 int asprintf(char **ptr, const char *format, ...);
720 #ifndef HAVE_VASPRINTF
721 int vasprintf(char **ptr, const char *format, va_list ap);
724 #if !defined HAVE_VSNPRINTF || !defined HAVE_C99_VSNPRINTF
725 #define vsnprintf rsync_vsnprintf
726 int vsnprintf(char *str, size_t count, const char *fmt, va_list args);
729 #if !defined HAVE_SNPRINTF || !defined HAVE_C99_VSNPRINTF
730 #define snprintf rsync_snprintf
731 int snprintf(char *str, size_t count, const char *fmt,...);
735 #ifndef HAVE_STRERROR
736 extern char *sys_errlist[];
737 #define strerror(i) sys_errlist[i]
741 # define strchr index
742 # define strrchr rindex
745 #ifndef HAVE_ERRNO_DECL
750 #define SUPPORT_LINKS 1
753 #define SUPPORT_HARD_LINKS 1
756 #ifdef HAVE_SIGACTION
757 #define SIGACTION(n,h) sigact.sa_handler=(h), sigaction((n),&sigact,NULL)
758 #define signal(n,h) we_need_to_call_SIGACTION_not_signal(n,h)
760 #define SIGACTION(n,h) signal(n,h)
764 #define EWOULDBLOCK EAGAIN
768 #define STDIN_FILENO 0
771 #ifndef STDOUT_FILENO
772 #define STDOUT_FILENO 1
775 #ifndef STDERR_FILENO
776 #define STDERR_FILENO 2
788 #define ACCESSPERMS 0777
795 #define CHMOD_BITS (S_ISUID | S_ISGID | S_ISVTX | ACCESSPERMS)
798 #define _S_IFMT 0170000
802 #define _S_IFLNK 0120000
806 #define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK))
810 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
814 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
819 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
821 #define S_ISSOCK(mode) (0)
827 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
829 #define S_ISFIFO(mode) (0)
834 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
838 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
841 /* work out what fcntl flag to use for non-blocking */
843 # define NONBLOCK_FLAG O_NONBLOCK
845 # define NONBLOCK_FLAG O_NDELAY
847 # define NONBLOCK_FLAG FNDELAY
850 #ifndef INADDR_LOOPBACK
851 #define INADDR_LOOPBACK 0x7f000001
855 #define INADDR_NONE 0xffffffff
858 #define IS_SPECIAL(mode) (S_ISSOCK(mode) || S_ISFIFO(mode))
859 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode))
861 /* Initial mask on permissions given to temporary files. Mask off setuid
862 bits and group access because of potential race-condition security
863 holes, and mask other access because mode 707 is bizarre */
864 #define INITACCESSPERMS 0700
866 /* handler for null strings in printf format */
867 #define NS(s) ((s)?(s):"<NULL>")
869 /* Convenient wrappers for malloc and realloc. Use them. */
870 #define new(type) ((type *)malloc(sizeof(type)))
871 #define new_array(type, num) ((type *)_new_array(sizeof(type), (num)))
872 #define realloc_array(ptr, type, num) ((type *)_realloc_array((ptr), sizeof(type), (num)))
874 /* use magic gcc attributes to catch format errors */
875 void rprintf(enum logcode , const char *, ...)
876 __attribute__((format (printf, 2, 3)))
879 /* This is just like rprintf, but it also tries to print some
880 * representation of the error code. Normally errcode = errno. */
881 void rsyserr(enum logcode, int, const char *, ...)
882 __attribute__((format (printf, 3, 4)))
885 /* Make sure that the O_BINARY flag is defined. */
891 size_t strlcpy(char *d, const char *s, size_t bufsize);
895 size_t strlcat(char *d, const char *s, size_t bufsize);
899 #define WEXITSTATUS(stat) ((int)(((stat)>>8)&0xFF))
902 #define WIFEXITED(stat) ((int)((stat)&0xFF) == 0)
905 #define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__)
908 #define MY_UID() geteuid()
910 #define MY_UID() getuid()
914 #define MY_GID() getegid()
916 #define MY_GID() getgid()
921 #ifndef HAVE_INET_NTOP
922 const char *inet_ntop(int af, const void *src, char *dst, size_t size);
925 #ifndef HAVE_INET_PTON
926 int inet_pton(int af, const char *src, void *dst);
929 #ifdef MAINTAINER_MODE
930 const char *get_panic_action(void);
934 isDigit(const char *ptr)
936 return isdigit(*(unsigned char *)ptr);
940 isPrint(const char *ptr)
942 return isprint(*(unsigned char *)ptr);
946 isSpace(const char *ptr)
948 return isspace(*(unsigned char *)ptr);
952 isLower(const char *ptr)
954 return islower(*(unsigned char *)ptr);
958 isUpper(const char *ptr)
960 return isupper(*(unsigned char *)ptr);
964 toLower(const char *ptr)
966 return tolower(*(unsigned char *)ptr);
970 toUpper(const char *ptr)
972 return toupper(*(unsigned char *)ptr);