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 /* 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_HLINKED (1<<9)
55 #define XMIT_SAME_DEV_pre30 (1<<10) /* protocols < 30 */
56 #define XMIT_HLINK_FIRST (1<<10) /* protocols >= 30 */
57 #define XMIT_RDEV_MINOR_IS_SMALL (1<<11)
59 /* These flags are used in the live flist data. */
61 #define FLAG_TOP_DIR (1<<0) /* sender/receiver/generator */
62 #define FLAG_SENT (1<<1) /* sender/generator */
63 #define FLAG_XFER_DIR (1<<2) /* sender/receiver/generator */
64 #define FLAG_MOUNT_DIR (1<<3) /* sender/generator */
65 #define FLAG_MISSING_DIR (1<<4) /* generator */
66 #define FLAG_HLINKED (1<<5) /* receiver/generator */
67 #define FLAG_HLINK_FIRST (1<<6) /* receiver/generator */
68 #define FLAG_HLINK_LAST (1<<7) /* receiver/generator */
69 #define FLAG_HLINK_DONE (1<<8) /* receiver/generator */
70 #define FLAG_LENGTH64 (1<<9) /* sender/receiver/generator */
72 #define BITS_SET(val,bits) (((val) & (bits)) == (bits))
73 #define BITS_SETnUNSET(val,onbits,offbits) (((val) & ((onbits)|(offbits))) == (onbits))
74 #define BITS_EQUAL(b1,b2,mask) (((unsigned)(b1) & (unsigned)(mask)) \
75 == ((unsigned)(b2) & (unsigned)(mask)))
77 /* update this if you make incompatible changes */
78 #define PROTOCOL_VERSION 30
80 /* We refuse to interoperate with versions that are not in this range.
81 * Note that we assume we'll work with later versions: the onus is on
82 * people writing them to make sure that they don't send us anything
83 * we won't understand.
85 * Interoperation with old but supported protocol versions
86 * should cause a warning to be printed. At a future date
87 * the old protocol will become the minimum and
88 * compatibility code removed.
90 * There are two possible explanations for the limit at
91 * MAX_PROTOCOL_VERSION: either to allow new major-rev versions that
92 * do not interoperate with us, and (more likely) so that we can
93 * detect an attempt to connect rsync to a non-rsync server, which is
94 * unlikely to begin by sending a byte between MIN_PROTOCL_VERSION and
95 * MAX_PROTOCOL_VERSION. */
97 #define MIN_PROTOCOL_VERSION 20
98 #define OLD_PROTOCOL_VERSION 25
99 #define MAX_PROTOCOL_VERSION 40
101 #define RSYNC_PORT 873
103 #define SPARSE_WRITE_SIZE (1024)
104 #define WRITE_SIZE (32*1024)
105 #define CHUNK_SIZE (32*1024)
106 #define MAX_MAP_SIZE (256*1024)
107 #define IO_BUFFER_SIZE (4092)
108 #define MAX_BLOCK_SIZE ((int32)1 << 29)
110 #define IOERR_GENERAL (1<<0) /* For backward compatibility, this must == 1 */
111 #define IOERR_VANISHED (1<<1)
112 #define IOERR_DEL_LIMIT (1<<2)
114 #define MAX_ARGS 1000
115 #define MAX_BASIS_DIRS 20
116 #define MAX_SERVER_ARGS (MAX_BASIS_DIRS*2 + 100)
121 #define SERVER_FILTERS 1
122 #define ALL_FILTERS 2
124 #define XFLG_FATAL_ERRORS (1<<0)
125 #define XFLG_OLD_PREFIXES (1<<1)
126 #define XFLG_ANCHORED2ABS (1<<2)
127 #define XFLG_ABS_IF_SLASH (1<<3)
129 #define ATTRS_REPORT (1<<0)
130 #define ATTRS_SKIP_MTIME (1<<1)
133 #define NORMAL_FLUSH 0
135 #define PDIR_CREATE 1
136 #define PDIR_DELETE 0
138 /* Note: 0x00 - 0x7F are used for basis_dir[] indexes! */
139 #define FNAMECMP_BASIS_DIR_LOW 0x00 /* Must remain 0! */
140 #define FNAMECMP_BASIS_DIR_HIGH 0x7F
141 #define FNAMECMP_FNAME 0x80
142 #define FNAMECMP_PARTIAL_DIR 0x81
143 #define FNAMECMP_BACKUP 0x82
144 #define FNAMECMP_FUZZY 0x83
146 /* For use by the itemize_changes code */
147 #define ITEM_REPORT_ATIME (1<<0)
148 #define ITEM_REPORT_CHECKSUM (1<<1)
149 #define ITEM_REPORT_SIZE (1<<2)
150 #define ITEM_REPORT_TIME (1<<3)
151 #define ITEM_REPORT_PERMS (1<<4)
152 #define ITEM_REPORT_OWNER (1<<5)
153 #define ITEM_REPORT_GROUP (1<<6)
154 #define ITEM_REPORT_ACL (1<<7)
155 #define ITEM_REPORT_XATTR (1<<8)
156 #define ITEM_BASIS_TYPE_FOLLOWS (1<<11)
157 #define ITEM_XNAME_FOLLOWS (1<<12)
158 #define ITEM_IS_NEW (1<<13)
159 #define ITEM_LOCAL_CHANGE (1<<14)
160 #define ITEM_TRANSFER (1<<15)
161 /* These are outside the range of the transmitted flags. */
162 #define ITEM_MISSING_DATA (1<<16) /* used by log_formatted() */
163 #define ITEM_DELETED (1<<17) /* used by log_formatted() */
164 #define ITEM_MATCHED (1<<18) /* used by itemize() */
166 #define SIGNIFICANT_ITEM_FLAGS (~(\
167 ITEM_BASIS_TYPE_FOLLOWS | ITEM_XNAME_FOLLOWS | ITEM_LOCAL_CHANGE))
170 /* Log-message categories. Only FERROR and FINFO get sent over the socket,
171 * but FLOG and FSOCKERR can be sent over the receiver -> generator pipe.
172 * FLOG only goes to the log file, not the client; FCLIENT is the opposite. */
173 enum logcode { FNONE=0, FERROR=1, FINFO=2, FLOG=3, FCLIENT=4, FSOCKERR=5 };
175 /* Messages types that are sent over the message channel. The logcode
176 * values must all be present here with identical numbers. */
178 MSG_DATA=0, /* raw data on the multiplexed stream */
179 MSG_ERROR=FERROR, MSG_INFO=FINFO, /* remote logging */
180 MSG_LOG=FLOG, MSG_CLIENT=FCLIENT, MSG_SOCKERR=FSOCKERR, /* sibling logging */
181 MSG_REDO=9, /* reprocess indicated flist index */
182 MSG_SUCCESS=100,/* successfully updated indicated flist index */
183 MSG_DELETED=101,/* successfully deleted a file on receiving side */
184 MSG_DONE=86 /* current phase is done */
193 /* The default RSYNC_RSH is always set in config.h. */
196 #ifdef HAVE_SYS_TYPES_H
197 # include <sys/types.h>
199 #ifdef HAVE_SYS_STAT_H
200 # include <sys/stat.h>
206 # ifdef HAVE_STDLIB_H
211 # if !defined STDC_HEADERS && defined HAVE_MEMORY_H
216 #ifdef HAVE_STRINGS_H
217 # include <strings.h>
223 #ifdef HAVE_SYS_PARAM_H
224 #include <sys/param.h>
227 #if defined HAVE_MALLOC_H && (defined HAVE_MALLINFO || !defined HAVE_STDLIB_H)
231 #ifdef HAVE_SYS_SOCKET_H
232 #include <sys/socket.h>
235 #ifdef TIME_WITH_SYS_TIME
236 #include <sys/time.h>
239 #ifdef HAVE_SYS_TIME_H
240 #include <sys/time.h>
249 #ifdef HAVE_SYS_FCNTL_H
250 #include <sys/fcntl.h>
254 #ifdef HAVE_SYS_IOCTL_H
255 #include <sys/ioctl.h>
258 #ifdef HAVE_SYS_FILIO_H
259 #include <sys/filio.h>
263 #ifdef HAVE_SYS_WAIT_H
264 #include <sys/wait.h>
278 #ifdef HAVE_SYS_SELECT_H
279 #include <sys/select.h>
282 #ifdef HAVE_SYS_MODE_H
283 /* apparently AIX needs this for S_ISLNK */
285 #include <sys/mode.h>
293 /* these are needed for the uid/gid mapping code */
298 #include <netinet/in.h>
299 #include <arpa/inet.h>
302 #include <sys/file.h>
307 # define dirent direct
308 # ifdef HAVE_SYS_NDIR_H
309 # include <sys/ndir.h>
311 # ifdef HAVE_SYS_DIR_H
312 # include <sys/dir.h>
319 #ifdef MAJOR_IN_MKDEV
320 #include <sys/mkdev.h>
321 # if !defined makedev && (defined mkdev || defined _WIN32 || defined __WIN32__)
322 # define makedev mkdev
324 #elif defined MAJOR_IN_SYSMACROS
325 #include <sys/sysmacros.h>
328 #ifdef MAKEDEV_TAKES_3_ARGS
329 #define MAKEDEV(devmajor,devminor) makedev(0,devmajor,devminor)
331 #define MAKEDEV(devmajor,devminor) makedev(devmajor,devminor)
344 #include "lib/pool_alloc.h"
349 #define uchar unsigned char
352 #ifdef SIGNED_CHAR_OK
353 #define schar signed char
358 /* Find a variable that is either exactly 32-bits or longer.
359 * If some code depends on 32-bit truncation, it will need to
360 * take special action in a "#if SIZEOF_INT32 > 4" section. */
364 # define SIZEOF_INT32 4
365 #elif SIZEOF_LONG == 4
367 # define SIZEOF_INT32 4
368 #elif SIZEOF_SHORT == 4
370 # define SIZEOF_INT32 4
373 # define SIZEOF_INT32 SIZEOF_INT
374 #elif SIZEOF_LONG > 4
376 # define SIZEOF_INT32 SIZEOF_LONG
378 # error Could not find a 32-bit integer variable
381 # define SIZEOF_INT32 4
385 #define uint32 unsigned int32
388 #if SIZEOF_OFF_T == 8 || !SIZEOF_OFF64_T || !defined HAVE_STRUCT_STAT64
390 #define STRUCT_STAT struct stat
392 #define OFF_T off64_t
393 #define STRUCT_STAT struct stat64
394 #define USE_STAT64_FUNCS 1
397 /* CAVEAT: on some systems, int64 will really be a 32-bit integer IFF
398 * that's the maximum size the file system can handle and there is no
399 * 64-bit type available. The rsync source must therefore take steps
400 * to ensure that any code that really requires a 64-bit integer has
401 * it (e.g. the checksum code uses two 32-bit integers for its 64-bit
405 # define SIZEOF_INT64 8
406 #elif SIZEOF_INT == 8
408 # define SIZEOF_INT64 8
409 #elif SIZEOF_LONG_LONG == 8
410 # define int64 long long
411 # define SIZEOF_INT64 8
412 #elif SIZEOF_OFF64_T == 8
413 # define int64 off64_t
414 # define SIZEOF_INT64 8
415 #elif SIZEOF_OFF_T == 8
417 # define SIZEOF_INT64 8
420 # define SIZEOF_INT64 SIZEOF_INT
421 #elif SIZEOF_LONG > 8
423 # define SIZEOF_INT64 SIZEOF_LONG
424 #elif SIZEOF_LONG_LONG > 8
425 # define int64 long long
426 # define SIZEOF_INT64 SIZEOF_LONG_LONG
428 /* As long as it gets... */
430 # define SIZEOF_INT64 SIZEOF_OFF_T
433 /* Starting from protocol version 26, we always use 64-bit
434 * ino_t and dev_t internally, even if this platform does not
435 * allow files to have 64-bit inums. That's because the
436 * receiver needs to find duplicate (dev,ino) tuples to detect
437 * hardlinks, and it might have files coming from a platform
438 * that has 64-bit inums.
440 * The only exception is if we're on a platform with no 64-bit type at
443 * Because we use read_longint() to get these off the wire, if you
444 * transfer devices or hardlinks with dev or inum > 2**32 to a machine
445 * with no 64-bit types then you will get an overflow error. Probably
446 * not many people have that combination of machines, and you can
447 * avoid it by not preserving hardlinks or not transferring device
448 * nodes. It's not clear that any other behaviour is better.
450 * Note that if you transfer devices from a 64-bit-devt machine (say,
451 * Solaris) to a 32-bit-devt machine (say, Linux-2.2/x86) then the
452 * device numbers will be truncated. But it's a kind of silly thing
455 * FIXME: I don't think the code in flist.c has ever worked on a system
456 * where dev_t is a struct.
470 #define MIN(a,b) ((a)<(b)?(a):(b))
474 #define MAX(a,b) ((a)>(b)?(a):(b))
477 #ifndef MAXHOSTNAMELEN
478 #define MAXHOSTNAMELEN 256
481 /* the length of the md4 checksum */
482 #define MD4_SUM_LENGTH 16
483 #define SUM_LENGTH 16
484 #define SHORT_SUM_LENGTH 2
485 #define BLOCKSUM_BIAS 10
488 #define MAXPATHLEN 1024
491 /* We want a roomy line buffer that can hold more than MAXPATHLEN,
492 * and significantly more than an overly short MAXPATHLEN. */
493 #if MAXPATHLEN < 4096
494 #define BIGPATHBUFLEN (4096+1024)
496 #define BIGPATHBUFLEN (MAXPATHLEN+1024)
504 #define INADDR_NONE 0xffffffff
507 #ifndef IN_LOOPBACKNET
508 #define IN_LOOPBACKNET 127
511 #define GID_NONE ((gid_t)-1)
514 uid_t uid; /* The user ID number */
515 uid_t gid; /* The group ID number or GID_NONE */
516 struct idev *idev; /* The hard-link info during matching */
517 int32 num; /* A signed number */
518 uint32 unum; /* An unsigned number */
522 time_t modtime; /* When the item was last modified */
523 const char *dirname; /* The dir info inside the transfer */
525 const char *root; /* Sender-side dir info outside transfer */
526 int32 depth; /* Receiver-side directory depth info */
528 uint32 len32; /* Lowest 32 bits of the file's length */
529 unsigned short mode; /* The item's type and permissions */
530 unsigned short flags; /* The FLAG_* bits for this item */
531 const char basename[1]; /* The basename (AKA filename) follows */
534 extern int flist_extra_cnt;
535 extern int preserve_uid;
536 extern int preserve_gid;
538 #define FILE_STRUCT_LEN (offsetof(struct file_struct, basename))
539 #define EXTRA_LEN (sizeof (union file_extras))
540 #define SUM_EXTRA_CNT ((MD4_SUM_LENGTH + EXTRA_LEN - 1) / EXTRA_LEN)
542 #define REQ_EXTRA(f,ndx) ((union file_extras*)(f) - (ndx))
543 #define OPT_EXTRA(f,bump) ((union file_extras*)(f) - flist_extra_cnt - 1 - (bump))
545 #define LEN64_BUMP(f) ((f)->flags & FLAG_LENGTH64 ? 1 : 0)
546 #define HLINK_BUMP(f) (F_IS_HLINKED(f) ? 1 : 0)
548 /* The length applies to all items. */
550 #define F_LENGTH(f) ((int64)(f)->len32)
552 #define F_LENGTH(f) ((int64)(f)->len32 + ((f)->flags & FLAG_LENGTH64 \
553 ? (int64)OPT_EXTRA(f, 0)->unum << 32 : 0))
556 /* If there is a symlink string, it is always right after the basename */
557 #define F_SYMLINK(f) ((f)->basename + strlen((f)->basename) + 1)
559 /* When the associated option is on, all entries will have these present: */
560 #define F_UID(f) REQ_EXTRA(f, preserve_uid)->uid
561 #define F_GID(f) REQ_EXTRA(f, preserve_gid)->gid
563 /* These items are per-entry optional and mutally exclusive: */
564 #define F_HL_IDEV(f) OPT_EXTRA(f, LEN64_BUMP(f))->idev
565 #define F_HL_GNUM(f) OPT_EXTRA(f, LEN64_BUMP(f))->num
566 #define F_HL_PREV(f) OPT_EXTRA(f, LEN64_BUMP(f))->num
568 /* This optional item might follow an F_HL_*() item.
569 * (Note: a device doesn't need to check LEN64_BUMP(f).) */
570 #define F_RDEV_P(f) (&OPT_EXTRA(f, HLINK_BUMP(f) + 2 - 1)->unum)
572 /* The sum is only present on regular files. */
573 #define F_SUM(f) ((const char*)OPT_EXTRA(f, LEN64_BUMP(f) + HLINK_BUMP(f) \
574 + SUM_EXTRA_CNT - 1))
576 /* Some utility defines: */
577 #define F_IS_ACTIVE(f) (f)->basename[0]
578 #define F_IS_HLINKED(f) ((f)->flags & FLAG_HLINKED)
579 #define F_HLINK_NOT_FIRST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_FIRST)
580 #define F_HLINK_NOT_LAST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_LAST)
582 #define DEV_MAJOR(a) (a)[0]
583 #define DEV_MINOR(a) (a)[1]
586 * Start the flist array at FLIST_START entries and grow it
587 * by doubling until FLIST_LINEAR then grow by FLIST_LINEAR
589 #define FLIST_START (32 * 1024)
590 #define FLIST_LINEAR (FLIST_START * 512)
593 * Extent size for allocation pools: A minimum size of 128KB
594 * is needed to mmap them so that freeing will release the
597 * Larger sizes reduce leftover fragments and speed free calls
598 * (when they happen). Smaller sizes increase the chance of
599 * freed allocations freeing whole extents.
601 #define FILE_EXTENT (256 * 1024)
602 #define HLINK_EXTENT (128 * 1024)
605 struct file_struct **files;
606 alloc_pool_t file_pool;
608 int low, high; /* 0-relative index values excluding empties */
611 #define SUMFLG_SAME_OFFSET (1<<0)
614 OFF_T offset; /**< offset in file of this chunk */
615 int32 len; /**< length of chunk of file */
616 uint32 sum1; /**< simple checksum */
617 int32 chain; /**< next hash-table collision */
618 short flags; /**< flag bits */
619 char sum2[SUM_LENGTH]; /**< checksum */
623 OFF_T flength; /**< total file length */
624 struct sum_buf *sums; /**< points to info for each chunk */
625 int32 count; /**< how many chunks */
626 int32 blength; /**< block_length */
627 int32 remainder; /**< flength % block_length */
628 int s2length; /**< sum2_length */
632 OFF_T file_size; /* File size (from stat) */
633 OFF_T p_offset; /* Window start */
634 OFF_T p_fd_offset; /* offset of cursor in fd ala lseek */
635 char *p; /* Window pointer */
636 int32 p_size; /* Largest window size we allocated */
637 int32 p_len; /* Latest (rounded) window size */
638 int32 def_window_size; /* Default window size */
639 int fd; /* File Descriptor */
640 int status; /* first errno from read errors */
643 #define MATCHFLG_WILD (1<<0) /* pattern has '*', '[', and/or '?' */
644 #define MATCHFLG_WILD2 (1<<1) /* pattern has '**' */
645 #define MATCHFLG_WILD2_PREFIX (1<<2) /* pattern starts with "**" */
646 #define MATCHFLG_WILD3_SUFFIX (1<<3) /* pattern ends with "***" */
647 #define MATCHFLG_ABS_PATH (1<<4) /* path-match on absolute path */
648 #define MATCHFLG_INCLUDE (1<<5) /* this is an include, not an exclude */
649 #define MATCHFLG_DIRECTORY (1<<6) /* this matches only directories */
650 #define MATCHFLG_WORD_SPLIT (1<<7) /* split rules on whitespace */
651 #define MATCHFLG_NO_INHERIT (1<<8) /* don't inherit these rules */
652 #define MATCHFLG_NO_PREFIXES (1<<9) /* parse no prefixes from patterns */
653 #define MATCHFLG_MERGE_FILE (1<<10)/* specifies a file to merge */
654 #define MATCHFLG_PERDIR_MERGE (1<<11)/* merge-file is searched per-dir */
655 #define MATCHFLG_EXCLUDE_SELF (1<<12)/* merge-file name should be excluded */
656 #define MATCHFLG_FINISH_SETUP (1<<13)/* per-dir merge file needs setup */
657 #define MATCHFLG_NEGATE (1<<14)/* rule matches when pattern does not */
658 #define MATCHFLG_CVS_IGNORE (1<<15)/* rule was -C or :C */
659 #define MATCHFLG_SENDER_SIDE (1<<16)/* rule applies to the sending side */
660 #define MATCHFLG_RECEIVER_SIDE (1<<17)/* rule applies to the receiving side */
661 #define MATCHFLG_CLEAR_LIST (1<<18)/* this item is the "!" token */
662 #define MATCHFLG_PERISHABLE (1<<19)/* perishable if parent dir goes away */
664 #define MATCHFLGS_FROM_CONTAINER (MATCHFLG_ABS_PATH | MATCHFLG_INCLUDE \
665 | MATCHFLG_DIRECTORY | MATCHFLG_SENDER_SIDE \
666 | MATCHFLG_NEGATE | MATCHFLG_RECEIVER_SIDE \
667 | MATCHFLG_PERISHABLE)
669 struct filter_struct {
670 struct filter_struct *next;
675 struct filter_list_struct *mergelist;
679 struct filter_list_struct {
680 struct filter_struct *head;
681 struct filter_struct *tail;
687 int64 total_transferred_size;
692 int64 flist_buildtime;
693 int64 flist_xfertime;
696 int num_transferred_files;
697 int current_file_index;
700 struct chmod_mode_struct;
702 #include "byteorder.h"
703 #include "lib/mdfour.h"
704 #include "lib/wildmatch.h"
705 #include "lib/permstring.h"
706 #include "lib/addrinfo.h"
709 #define __attribute__(x)
715 #define UNUSED(x) x __attribute__((__unused__))
717 #define NORETURN __attribute__((__noreturn__))
722 /* We have replacement versions of these if they're missing. */
723 #ifndef HAVE_ASPRINTF
724 int asprintf(char **ptr, const char *format, ...);
727 #ifndef HAVE_VASPRINTF
728 int vasprintf(char **ptr, const char *format, va_list ap);
731 #if !defined HAVE_VSNPRINTF || !defined HAVE_C99_VSNPRINTF
732 #define vsnprintf rsync_vsnprintf
733 int vsnprintf(char *str, size_t count, const char *fmt, va_list args);
736 #if !defined HAVE_SNPRINTF || !defined HAVE_C99_VSNPRINTF
737 #define snprintf rsync_snprintf
738 int snprintf(char *str, size_t count, const char *fmt,...);
742 #ifndef HAVE_STRERROR
743 extern char *sys_errlist[];
744 #define strerror(i) sys_errlist[i]
748 # define strchr index
749 # define strrchr rindex
752 #ifndef HAVE_ERRNO_DECL
757 #define SUPPORT_LINKS 1
760 #define SUPPORT_HARD_LINKS 1
763 #ifdef HAVE_SIGACTION
764 #define SIGACTION(n,h) sigact.sa_handler=(h), sigaction((n),&sigact,NULL)
765 #define signal(n,h) we_need_to_call_SIGACTION_not_signal(n,h)
767 #define SIGACTION(n,h) signal(n,h)
771 #define EWOULDBLOCK EAGAIN
775 #define STDIN_FILENO 0
778 #ifndef STDOUT_FILENO
779 #define STDOUT_FILENO 1
782 #ifndef STDERR_FILENO
783 #define STDERR_FILENO 2
795 #define ACCESSPERMS 0777
802 #define CHMOD_BITS (S_ISUID | S_ISGID | S_ISVTX | ACCESSPERMS)
805 #define _S_IFMT 0170000
809 #define _S_IFLNK 0120000
813 #define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK))
817 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
821 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
826 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
828 #define S_ISSOCK(mode) (0)
834 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
836 #define S_ISFIFO(mode) (0)
841 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
845 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
848 /* work out what fcntl flag to use for non-blocking */
850 # define NONBLOCK_FLAG O_NONBLOCK
852 # define NONBLOCK_FLAG O_NDELAY
854 # define NONBLOCK_FLAG FNDELAY
857 #ifndef INADDR_LOOPBACK
858 #define INADDR_LOOPBACK 0x7f000001
862 #define INADDR_NONE 0xffffffff
865 #define IS_SPECIAL(mode) (S_ISSOCK(mode) || S_ISFIFO(mode))
866 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode))
868 /* Initial mask on permissions given to temporary files. Mask off setuid
869 bits and group access because of potential race-condition security
870 holes, and mask other access because mode 707 is bizarre */
871 #define INITACCESSPERMS 0700
873 /* handler for null strings in printf format */
874 #define NS(s) ((s)?(s):"<NULL>")
876 /* Convenient wrappers for malloc and realloc. Use them. */
877 #define new(type) ((type *)malloc(sizeof(type)))
878 #define new_array(type, num) ((type *)_new_array(sizeof(type), (num)))
879 #define realloc_array(ptr, type, num) ((type *)_realloc_array((ptr), sizeof(type), (num)))
881 /* use magic gcc attributes to catch format errors */
882 void rprintf(enum logcode , const char *, ...)
883 __attribute__((format (printf, 2, 3)))
886 /* This is just like rprintf, but it also tries to print some
887 * representation of the error code. Normally errcode = errno. */
888 void rsyserr(enum logcode, int, const char *, ...)
889 __attribute__((format (printf, 3, 4)))
892 /* Make sure that the O_BINARY flag is defined. */
898 size_t strlcpy(char *d, const char *s, size_t bufsize);
902 size_t strlcat(char *d, const char *s, size_t bufsize);
906 #define WEXITSTATUS(stat) ((int)(((stat)>>8)&0xFF))
909 #define WIFEXITED(stat) ((int)((stat)&0xFF) == 0)
912 #define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__)
915 #define MY_UID() geteuid()
917 #define MY_UID() getuid()
921 #define MY_GID() getegid()
923 #define MY_GID() getgid()
928 #ifndef HAVE_INET_NTOP
929 const char *inet_ntop(int af, const void *src, char *dst, size_t size);
932 #ifndef HAVE_INET_PTON
933 int inet_pton(int af, const char *src, void *dst);
936 #ifdef MAINTAINER_MODE
937 const char *get_panic_action(void);
941 isDigit(const char *ptr)
943 return isdigit(*(unsigned char *)ptr);
947 isPrint(const char *ptr)
949 return isprint(*(unsigned char *)ptr);
953 isSpace(const char *ptr)
955 return isspace(*(unsigned char *)ptr);
959 isLower(const char *ptr)
961 return islower(*(unsigned char *)ptr);
965 isUpper(const char *ptr)
967 return isupper(*(unsigned char *)ptr);
971 toLower(const char *ptr)
973 return tolower(*(unsigned char *)ptr);
977 toUpper(const char *ptr)
979 return toupper(*(unsigned char *)ptr);