1: /*
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) 2003-2013 Wayne Davison
6: *
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.
11: *
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.
16: *
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.
19: */
20:
21: #define False 0
22: #define True 1
23:
24: #define BLOCK_SIZE 700
25: #define RSYNC_RSH_ENV "RSYNC_RSH"
26: #define RSYNC_RSH_IO_ENV "RSYNC_RSH_IO"
27:
28: #define RSYNC_NAME "rsync"
29: /* RSYNCD_SYSCONF is now set in config.h */
30: #define RSYNCD_USERCONF "rsyncd.conf"
31:
32: #define DEFAULT_LOCK_FILE "/var/run/rsyncd.lock"
33: #define URL_PREFIX "rsync://"
34:
35: #define SYMLINK_PREFIX "/rsyncd-munged/" /* This MUST have a trailing slash! */
36: #define SYMLINK_PREFIX_LEN ((int)sizeof SYMLINK_PREFIX - 1)
37:
38: #define BACKUP_SUFFIX "~"
39:
40: /* a non-zero CHAR_OFFSET makes the rolling sum stronger, but is
41: incompatible with older versions :-( */
42: #define CHAR_OFFSET 0
43:
44: /* These flags are only used during the flist transfer. */
45:
46: #define XMIT_TOP_DIR (1<<0)
47: #define XMIT_SAME_MODE (1<<1)
48: #define XMIT_SAME_RDEV_pre28 (1<<2) /* protocols 20 - 27 */
49: #define XMIT_EXTENDED_FLAGS (1<<2) /* protocols 28 - now */
50: #define XMIT_SAME_UID (1<<3)
51: #define XMIT_SAME_GID (1<<4)
52: #define XMIT_SAME_NAME (1<<5)
53: #define XMIT_LONG_NAME (1<<6)
54: #define XMIT_SAME_TIME (1<<7)
55: #define XMIT_SAME_RDEV_MAJOR (1<<8) /* protocols 28 - now (devices only) */
56: #define XMIT_NO_CONTENT_DIR (1<<8) /* protocols 30 - now (dirs only) */
57: #define XMIT_HLINKED (1<<9) /* protocols 28 - now */
58: #define XMIT_SAME_DEV_pre30 (1<<10) /* protocols 28 - 29 */
59: #define XMIT_USER_NAME_FOLLOWS (1<<10) /* protocols 30 - now */
60: #define XMIT_RDEV_MINOR_8_pre30 (1<<11) /* protocols 28 - 29 */
61: #define XMIT_GROUP_NAME_FOLLOWS (1<<11) /* protocols 30 - now */
62: #define XMIT_HLINK_FIRST (1<<12) /* protocols 30 - now (HLINKED files only) */
63: #define XMIT_IO_ERROR_ENDLIST (1<<12) /* protocols 31*- now (w/XMIT_EXTENDED_FLAGS) (also protocol 30 w/'f' compat flag) */
64: #define XMIT_MOD_NSEC (1<<13) /* protocols 31 - now */
65:
66: /* These flags are used in the live flist data. */
67:
68: #define FLAG_TOP_DIR (1<<0) /* sender/receiver/generator */
69: #define FLAG_OWNED_BY_US (1<<0) /* generator: set by make_file() for aux flists only */
70: #define FLAG_FILE_SENT (1<<1) /* sender/receiver/generator */
71: #define FLAG_DIR_CREATED (1<<1) /* generator */
72: #define FLAG_CONTENT_DIR (1<<2) /* sender/receiver/generator */
73: #define FLAG_MOUNT_DIR (1<<3) /* sender/generator (dirs only) */
74: #define FLAG_SKIP_HLINK (1<<3) /* receiver/generator (w/FLAG_HLINKED) */
75: #define FLAG_DUPLICATE (1<<4) /* sender */
76: #define FLAG_MISSING_DIR (1<<4) /* generator */
77: #define FLAG_HLINKED (1<<5) /* receiver/generator (checked on all types) */
78: #define FLAG_HLINK_FIRST (1<<6) /* receiver/generator (w/FLAG_HLINKED) */
79: #define FLAG_IMPLIED_DIR (1<<6) /* sender/receiver/generator (dirs only) */
80: #define FLAG_HLINK_LAST (1<<7) /* receiver/generator */
81: #define FLAG_HLINK_DONE (1<<8) /* receiver/generator (checked on all types) */
82: #define FLAG_LENGTH64 (1<<9) /* sender/receiver/generator */
83: #define FLAG_SKIP_GROUP (1<<10) /* receiver/generator */
84: #define FLAG_TIME_FAILED (1<<11)/* generator */
85: #define FLAG_MOD_NSEC (1<<12) /* sender/receiver/generator */
86:
87: /* These flags are passed to functions but not stored. */
88:
89: #define FLAG_DIVERT_DIRS (1<<16) /* sender, but must be unique */
90:
91: /* These flags are for get_dirlist(). */
92: #define GDL_IGNORE_FILTER_RULES (1<<0)
93:
94: /* Some helper macros for matching bits. */
95: #define BITS_SET(val,bits) (((val) & (bits)) == (bits))
96: #define BITS_SETnUNSET(val,onbits,offbits) (((val) & ((onbits)|(offbits))) == (onbits))
97: #define BITS_EQUAL(b1,b2,mask) (((unsigned)(b1) & (unsigned)(mask)) \
98: == ((unsigned)(b2) & (unsigned)(mask)))
99:
100: /* update this if you make incompatible changes */
101: #define PROTOCOL_VERSION 31
102:
103: /* This is used when working on a new protocol version in CVS, and should
104: * be a new non-zero value for each CVS change that affects the protocol.
105: * It must ALWAYS be 0 when the protocol goes final (and NEVER before)! */
106: #define SUBPROTOCOL_VERSION 0
107:
108: /* We refuse to interoperate with versions that are not in this range.
109: * Note that we assume we'll work with later versions: the onus is on
110: * people writing them to make sure that they don't send us anything
111: * we won't understand.
112: *
113: * Interoperation with old but supported protocol versions
114: * should cause a warning to be printed. At a future date
115: * the old protocol will become the minimum and
116: * compatibility code removed.
117: *
118: * There are two possible explanations for the limit at
119: * MAX_PROTOCOL_VERSION: either to allow new major-rev versions that
120: * do not interoperate with us, and (more likely) so that we can
121: * detect an attempt to connect rsync to a non-rsync server, which is
122: * unlikely to begin by sending a byte between MIN_PROTOCL_VERSION and
123: * MAX_PROTOCOL_VERSION. */
124:
125: #define MIN_PROTOCOL_VERSION 20
126: #define OLD_PROTOCOL_VERSION 25
127: #define MAX_PROTOCOL_VERSION 40
128:
129: #define MIN_FILECNT_LOOKAHEAD 1000
130: #define MAX_FILECNT_LOOKAHEAD 10000
131:
132: #define RSYNC_PORT 873
133:
134: #define SPARSE_WRITE_SIZE (1024)
135: #define WRITE_SIZE (32*1024)
136: #define CHUNK_SIZE (32*1024)
137: #define MAX_MAP_SIZE (256*1024)
138: #define IO_BUFFER_SIZE (32*1024)
139: #define MAX_BLOCK_SIZE ((int32)1 << 17)
140:
141: /* For compatibility with older rsyncs */
142: #define OLD_MAX_BLOCK_SIZE ((int32)1 << 29)
143:
144: #define ROUND_UP_1024(siz) ((siz) & (1024-1) ? ((siz) | (1024-1)) + 1 : (siz))
145:
146: #define IOERR_GENERAL (1<<0) /* For backward compatibility, this must == 1 */
147: #define IOERR_VANISHED (1<<1)
148: #define IOERR_DEL_LIMIT (1<<2)
149:
150: #define MAX_ARGS 1000
151: #define MAX_BASIS_DIRS 20
152: #define MAX_SERVER_ARGS (MAX_BASIS_DIRS*2 + 100)
153:
154: #define MPLEX_BASE 7
155:
156: #define NO_FILTERS 0
157: #define SERVER_FILTERS 1
158: #define ALL_FILTERS 2
159:
160: #define XFLG_FATAL_ERRORS (1<<0)
161: #define XFLG_OLD_PREFIXES (1<<1)
162: #define XFLG_ANCHORED2ABS (1<<2) /* leading slash indicates absolute */
163: #define XFLG_ABS_IF_SLASH (1<<3) /* leading or interior slash is absolute */
164: #define XFLG_DIR2WILD3 (1<<4) /* dir/ match gets trailing *** added */
165:
166: #define ATTRS_REPORT (1<<0)
167: #define ATTRS_SKIP_MTIME (1<<1)
168:
169: #define FULL_FLUSH 1
170: #define NORMAL_FLUSH 0
171:
172: #define PDIR_CREATE 1
173: #define PDIR_DELETE 0
174:
175: /* Note: 0x00 - 0x7F are used for basis_dir[] indexes! */
176: #define FNAMECMP_BASIS_DIR_LOW 0x00 /* Must remain 0! */
177: #define FNAMECMP_BASIS_DIR_HIGH 0x7F
178: #define FNAMECMP_FNAME 0x80
179: #define FNAMECMP_PARTIAL_DIR 0x81
180: #define FNAMECMP_BACKUP 0x82
181: #define FNAMECMP_FUZZY 0x83
182:
183: /* For use by the itemize_changes code */
184: #define ITEM_REPORT_ATIME (1<<0)
185: #define ITEM_REPORT_CHANGE (1<<1)
186: #define ITEM_REPORT_SIZE (1<<2) /* regular files only */
187: #define ITEM_REPORT_TIMEFAIL (1<<2) /* symlinks only */
188: #define ITEM_REPORT_TIME (1<<3)
189: #define ITEM_REPORT_PERMS (1<<4)
190: #define ITEM_REPORT_OWNER (1<<5)
191: #define ITEM_REPORT_GROUP (1<<6)
192: #define ITEM_REPORT_ACL (1<<7)
193: #define ITEM_REPORT_XATTR (1<<8)
194: #define ITEM_BASIS_TYPE_FOLLOWS (1<<11)
195: #define ITEM_XNAME_FOLLOWS (1<<12)
196: #define ITEM_IS_NEW (1<<13)
197: #define ITEM_LOCAL_CHANGE (1<<14)
198: #define ITEM_TRANSFER (1<<15)
199: /* These are outside the range of the transmitted flags. */
200: #define ITEM_MISSING_DATA (1<<16) /* used by log_formatted() */
201: #define ITEM_DELETED (1<<17) /* used by log_formatted() */
202: #define ITEM_MATCHED (1<<18) /* used by itemize() */
203:
204: #define SIGNIFICANT_ITEM_FLAGS (~(\
205: ITEM_BASIS_TYPE_FOLLOWS | ITEM_XNAME_FOLLOWS | ITEM_LOCAL_CHANGE))
206:
207: #define CFN_KEEP_DOT_DIRS (1<<0)
208: #define CFN_KEEP_TRAILING_SLASH (1<<1)
209: #define CFN_DROP_TRAILING_DOT_DIR (1<<2)
210: #define CFN_COLLAPSE_DOT_DOT_DIRS (1<<3)
211:
212: #define SP_DEFAULT 0
213: #define SP_KEEP_DOT_DIRS (1<<0)
214:
215: #define CD_NORMAL 0
216: #define CD_SKIP_CHDIR 1
217:
218: /* Log-message categories. FLOG only goes to the log file, not the client;
219: * FCLIENT is the opposite. */
220: enum logcode {
221: FNONE=0, /* never sent */
222: FERROR_XFER=1, FINFO=2, /* sent over socket for any protocol */
223: FERROR=3, FWARNING=4, /* sent over socket for protocols >= 30 */
224: FERROR_SOCKET=5, FLOG=6, /* only sent via receiver -> generator pipe */
225: FERROR_UTF8=8, /* only sent via receiver -> generator pipe */
226: FCLIENT=7 /* never transmitted (e.g. server converts to FINFO) */
227: };
228:
229: /* Messages types that are sent over the message channel. The logcode
230: * values must all be present here with identical numbers. */
231: enum msgcode {
232: MSG_DATA=0, /* raw data on the multiplexed stream */
233: MSG_ERROR_XFER=FERROR_XFER, MSG_INFO=FINFO, /* remote logging */
234: MSG_ERROR=FERROR, MSG_WARNING=FWARNING, /* protocol-30 remote logging */
235: MSG_ERROR_SOCKET=FERROR_SOCKET, /* sibling logging */
236: MSG_ERROR_UTF8=FERROR_UTF8, /* sibling logging */
237: MSG_LOG=FLOG, MSG_CLIENT=FCLIENT, /* sibling logging */
238: MSG_REDO=9, /* reprocess indicated flist index */
239: MSG_STATS=10, /* message has stats data for generator */
240: MSG_IO_ERROR=22,/* the sending side had an I/O error */
241: MSG_IO_TIMEOUT=33,/* tell client about a daemon's timeout value */
242: MSG_NOOP=42, /* a do-nothing message (legacy protocol-30 only) */
243: MSG_ERROR_EXIT=86, /* synchronize an error exit (siblings and protocol >= 31) */
244: MSG_SUCCESS=100,/* successfully updated indicated flist index */
245: MSG_DELETED=101,/* successfully deleted a file on receiving side */
246: MSG_NO_SEND=102,/* sender failed to open a file we wanted */
247: };
248:
249: #define NDX_DONE -1
250: #define NDX_FLIST_EOF -2
251: #define NDX_DEL_STATS -3
252: #define NDX_FLIST_OFFSET -101
253:
254: /* For calling delete_item() and delete_dir_contents(). */
255: #define DEL_NO_UID_WRITE (1<<0) /* file/dir has our uid w/o write perm */
256: #define DEL_RECURSE (1<<1) /* if dir, delete all contents */
257: #define DEL_DIR_IS_EMPTY (1<<2) /* internal delete_FUNCTIONS use only */
258: #define DEL_FOR_FILE (1<<3) /* making room for a replacement file */
259: #define DEL_FOR_DIR (1<<4) /* making room for a replacement dir */
260: #define DEL_FOR_SYMLINK (1<<5) /* making room for a replacement symlink */
261: #define DEL_FOR_DEVICE (1<<6) /* making room for a replacement device */
262: #define DEL_FOR_SPECIAL (1<<7) /* making room for a replacement special */
263: #define DEL_FOR_BACKUP (1<<8) /* the delete is for a backup operation */
264:
265: #define DEL_MAKE_ROOM (DEL_FOR_FILE|DEL_FOR_DIR|DEL_FOR_SYMLINK|DEL_FOR_DEVICE|DEL_FOR_SPECIAL)
266:
267: enum delret {
268: DR_SUCCESS = 0, DR_FAILURE, DR_AT_LIMIT, DR_NOT_EMPTY
269: };
270:
271: /* Defines for make_path() */
272: #define MKP_DROP_NAME (1<<0) /* drop trailing filename or trailing slash */
273: #define MKP_SKIP_SLASH (1<<1) /* skip one or more leading slashes */
274:
275: /* Defines for maybe_send_keepalive() */
276: #define MSK_ALLOW_FLUSH (1<<0)
277: #define MSK_ACTIVE_RECEIVER (1<<1)
278:
279: #include "errcode.h"
280:
281: #include "config.h"
282:
283: /* The default RSYNC_RSH is always set in config.h. */
284:
285: #include <stdio.h>
286: #ifdef HAVE_SYS_TYPES_H
287: # include <sys/types.h>
288: #endif
289: #ifdef HAVE_SYS_STAT_H
290: # include <sys/stat.h>
291: #endif
292: #ifdef STDC_HEADERS
293: # include <stdlib.h>
294: # include <stddef.h>
295: #else
296: # ifdef HAVE_STDLIB_H
297: # include <stdlib.h>
298: # endif
299: #endif
300: #ifdef HAVE_STRING_H
301: # if !defined STDC_HEADERS && defined HAVE_MEMORY_H
302: # include <memory.h>
303: # endif
304: # include <string.h>
305: #endif
306: #ifdef HAVE_STRINGS_H
307: # include <strings.h>
308: #endif
309: #ifdef HAVE_INTTYPES_H
310: # include <inttypes.h>
311: #endif
312: #ifdef HAVE_STDINT_H
313: # include <stdint.h>
314: #endif
315: #ifdef HAVE_UNISTD_H
316: # include <unistd.h>
317: #endif
318:
319: #ifdef HAVE_SYS_PARAM_H
320: #include <sys/param.h>
321: #endif
322:
323: #if defined HAVE_MALLOC_H && (defined HAVE_MALLINFO || !defined HAVE_STDLIB_H)
324: #include <malloc.h>
325: #endif
326:
327: #ifdef HAVE_SYS_SOCKET_H
328: #include <sys/socket.h>
329: #endif
330:
331: #ifdef TIME_WITH_SYS_TIME
332: #include <sys/time.h>
333: #include <time.h>
334: #else
335: #ifdef HAVE_SYS_TIME_H
336: #include <sys/time.h>
337: #else
338: #include <time.h>
339: #endif
340: #endif
341:
342: #ifdef HAVE_FCNTL_H
343: #include <fcntl.h>
344: #else
345: #ifdef HAVE_SYS_FCNTL_H
346: #include <sys/fcntl.h>
347: #endif
348: #endif
349:
350: #ifdef HAVE_SYS_IOCTL_H
351: #include <sys/ioctl.h>
352: #endif
353:
354: #ifdef HAVE_SYS_FILIO_H
355: #include <sys/filio.h>
356: #endif
357:
358: #include <signal.h>
359: #ifdef HAVE_SYS_WAIT_H
360: #include <sys/wait.h>
361: #endif
362: #ifdef HAVE_CTYPE_H
363: #include <ctype.h>
364: #endif
365: #ifdef HAVE_GRP_H
366: #include <grp.h>
367: #endif
368: #include <errno.h>
369:
370: #ifdef HAVE_UTIME_H
371: #include <utime.h>
372: #endif
373:
374: #if defined HAVE_UTIMENSAT || defined HAVE_LUTIMES
375: #define CAN_SET_SYMLINK_TIMES 1
376: #endif
377:
378: #if defined HAVE_LCHOWN || defined CHOWN_MODIFIES_SYMLINK
379: #define CAN_CHOWN_SYMLINK 1
380: #endif
381:
382: #if defined HAVE_LCHMOD || defined HAVE_SETATTRLIST
383: #define CAN_CHMOD_SYMLINK 1
384: #endif
385:
386: #ifdef HAVE_UTIMENSAT
387: #ifdef HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
388: #define ST_MTIME_NSEC st_mtim.tv_nsec
389: #elif defined(HAVE_STRUCT_STAT_ST_MTIMENSEC)
390: #define ST_MTIME_NSEC st_mtimensec
391: #endif
392: #endif
393:
394: #ifdef HAVE_SYS_SELECT_H
395: #include <sys/select.h>
396: #endif
397:
398: #ifdef HAVE_SYS_MODE_H
399: /* apparently AIX needs this for S_ISLNK */
400: #ifndef S_ISLNK
401: #include <sys/mode.h>
402: #endif
403: #endif
404:
405: /* these are needed for the uid/gid mapping code */
406: #include <pwd.h>
407: #include <grp.h>
408:
409: #include <stdarg.h>
410: #include <netinet/in.h>
411: #include <arpa/inet.h>
412: #ifdef HAVE_NETDB_H
413: #include <netdb.h>
414: #endif
415: #include <syslog.h>
416: #include <sys/file.h>
417:
418: #ifdef HAVE_DIRENT_H
419: # include <dirent.h>
420: #else
421: # define dirent direct
422: # ifdef HAVE_SYS_NDIR_H
423: # include <sys/ndir.h>
424: # endif
425: # ifdef HAVE_SYS_DIR_H
426: # include <sys/dir.h>
427: # endif
428: # ifdef HAVE_NDIR_H
429: # include <ndir.h>
430: # endif
431: #endif
432:
433: #ifdef MAJOR_IN_MKDEV
434: #include <sys/mkdev.h>
435: # if !defined makedev && (defined mkdev || defined _WIN32 || defined __WIN32__)
436: # define makedev mkdev
437: # endif
438: #elif defined MAJOR_IN_SYSMACROS
439: #include <sys/sysmacros.h>
440: #endif
441:
442: #ifdef MAKEDEV_TAKES_3_ARGS
443: #define MAKEDEV(devmajor,devminor) makedev(0,devmajor,devminor)
444: #else
445: #define MAKEDEV(devmajor,devminor) makedev(devmajor,devminor)
446: #endif
447:
448: #ifdef HAVE_COMPAT_H
449: #include <compat.h>
450: #endif
451:
452: #ifdef HAVE_LIMITS_H
453: # include <limits.h>
454: #endif
455:
456: #if defined USE_ICONV_OPEN && defined HAVE_ICONV_H
457: #include <iconv.h>
458: #ifndef ICONV_CONST
459: #define ICONV_CONST
460: #endif
461: #else
462: #ifdef ICONV_CONST
463: #undef ICONV_CONST
464: #endif
465: #ifdef ICONV_OPTION
466: #undef ICONV_OPTION
467: #endif
468: #ifdef iconv_t
469: #undef iconv_t
470: #endif
471: #define iconv_t int
472: #endif
473:
474: #include <assert.h>
475:
476: #include "lib/pool_alloc.h"
477:
478: #ifndef HAVE_ID_T
479: typedef unsigned int id_t;
480: #endif
481: #ifndef HAVE_PID_T
482: typedef int pid_t;
483: #endif
484: #ifndef HAVE_MODE_T
485: typedef unsigned int mode_t;
486: #endif
487: #ifndef HAVE_OFF_T
488: typedef long off_t;
489: #undef SIZEOF_OFF_T
490: #define SIZEOF_OFF_T SIZEOF_LONG
491: #endif
492: #ifndef HAVE_SIZE_T
493: typedef unsigned int size_t;
494: #endif
495:
496: #define BOOL int
497:
498: #ifndef uchar
499: #define uchar unsigned char
500: #endif
501:
502: #ifdef SIGNED_CHAR_OK
503: #define schar signed char
504: #else
505: #define schar char
506: #endif
507:
508: #ifndef int16
509: #if SIZEOF_INT16_T == 2
510: # define int16 int16_t
511: #else
512: # define int16 short
513: #endif
514: #endif
515:
516: #ifndef uint16
517: #if SIZEOF_UINT16_T == 2
518: # define uint16 uint16_t
519: #else
520: # define uint16 unsigned int16
521: #endif
522: #endif
523:
524: /* Find a variable that is either exactly 32-bits or longer.
525: * If some code depends on 32-bit truncation, it will need to
526: * take special action in a "#if SIZEOF_INT32 > 4" section. */
527: #ifndef int32
528: #if SIZEOF_INT32_T == 4
529: # define int32 int32_t
530: # define SIZEOF_INT32 4
531: #elif SIZEOF_INT == 4
532: # define int32 int
533: # define SIZEOF_INT32 4
534: #elif SIZEOF_LONG == 4
535: # define int32 long
536: # define SIZEOF_INT32 4
537: #elif SIZEOF_SHORT == 4
538: # define int32 short
539: # define SIZEOF_INT32 4
540: #elif SIZEOF_INT > 4
541: # define int32 int
542: # define SIZEOF_INT32 SIZEOF_INT
543: #elif SIZEOF_LONG > 4
544: # define int32 long
545: # define SIZEOF_INT32 SIZEOF_LONG
546: #else
547: # error Could not find a 32-bit integer variable
548: #endif
549: #else
550: # define SIZEOF_INT32 4
551: #endif
552:
553: #ifndef uint32
554: #if SIZEOF_UINT32_T == 4
555: # define uint32 uint32_t
556: #else
557: # define uint32 unsigned int32
558: #endif
559: #endif
560:
561: #if SIZEOF_OFF_T == 8 || !SIZEOF_OFF64_T || !defined HAVE_STRUCT_STAT64
562: #define OFF_T off_t
563: #define STRUCT_STAT struct stat
564: #define SIZEOF_CAPITAL_OFF_T SIZEOF_OFF_T
565: #else
566: #define OFF_T off64_t
567: #define STRUCT_STAT struct stat64
568: #define USE_STAT64_FUNCS 1
569: #define SIZEOF_CAPITAL_OFF_T SIZEOF_OFF64_T
570: #endif
571:
572: /* CAVEAT: on some systems, int64 will really be a 32-bit integer IFF
573: * that's the maximum size the file system can handle and there is no
574: * 64-bit type available. The rsync source must therefore take steps
575: * to ensure that any code that really requires a 64-bit integer has
576: * it (e.g. the checksum code uses two 32-bit integers for its 64-bit
577: * counter). */
578: #if SIZEOF_INT64_T == 8
579: # define int64 int64_t
580: # define SIZEOF_INT64 8
581: #elif SIZEOF_LONG == 8
582: # define int64 long
583: # define SIZEOF_INT64 8
584: #elif SIZEOF_INT == 8
585: # define int64 int
586: # define SIZEOF_INT64 8
587: #elif SIZEOF_LONG_LONG == 8
588: # define int64 long long
589: # define SIZEOF_INT64 8
590: #elif SIZEOF_OFF64_T == 8
591: # define int64 off64_t
592: # define SIZEOF_INT64 8
593: #elif SIZEOF_OFF_T == 8
594: # define int64 off_t
595: # define SIZEOF_INT64 8
596: #elif SIZEOF_INT > 8
597: # define int64 int
598: # define SIZEOF_INT64 SIZEOF_INT
599: #elif SIZEOF_LONG > 8
600: # define int64 long
601: # define SIZEOF_INT64 SIZEOF_LONG
602: #elif SIZEOF_LONG_LONG > 8
603: # define int64 long long
604: # define SIZEOF_INT64 SIZEOF_LONG_LONG
605: #else
606: /* As long as it gets... */
607: # define int64 off_t
608: # define SIZEOF_INT64 SIZEOF_OFF_T
609: #endif
610:
611: struct hashtable {
612: void *nodes;
613: int32 size, entries;
614: uint32 node_size;
615: short key64;
616: };
617:
618: struct ht_int32_node {
619: void *data;
620: int32 key;
621: };
622:
623: struct ht_int64_node {
624: void *data;
625: int64 key;
626: };
627:
628: #define HT_NODE(tbl, bkts, i) ((void*)((char*)(bkts) + (i)*(tbl)->node_size))
629: #define HT_KEY(node, k64) ((k64)? ((struct ht_int64_node*)(node))->key \
630: : (int64)((struct ht_int32_node*)(node))->key)
631:
632: #ifndef MIN
633: #define MIN(a,b) ((a)<(b)?(a):(b))
634: #endif
635:
636: #ifndef MAX
637: #define MAX(a,b) ((a)>(b)?(a):(b))
638: #endif
639:
640: #ifndef MAXHOSTNAMELEN
641: #define MAXHOSTNAMELEN 256
642: #endif
643:
644: #define SUM_LENGTH 16
645: #define SHORT_SUM_LENGTH 2
646: #define BLOCKSUM_BIAS 10
647:
648: #ifndef MAXPATHLEN
649: #define MAXPATHLEN 1024
650: #endif
651:
652: /* We want a roomy line buffer that can hold more than MAXPATHLEN,
653: * and significantly more than an overly short MAXPATHLEN. */
654: #if MAXPATHLEN < 4096
655: #define BIGPATHBUFLEN (4096+1024)
656: #else
657: #define BIGPATHBUFLEN (MAXPATHLEN+1024)
658: #endif
659:
660: #ifndef NAME_MAX
661: #define NAME_MAX 255
662: #endif
663:
664: #ifndef INADDR_NONE
665: #define INADDR_NONE 0xffffffff
666: #endif
667:
668: #ifndef IN_LOOPBACKNET
669: #define IN_LOOPBACKNET 127
670: #endif
671:
672: #if HAVE_UNIXWARE_ACLS|HAVE_SOLARIS_ACLS|HAVE_HPUX_ACLS
673: #define ACLS_NEED_MASK 1
674: #endif
675:
676: #if defined HAVE_FALLOCATE || HAVE_SYS_FALLOCATE
677: #ifdef HAVE_LINUX_FALLOC_H
678: #include <linux/falloc.h>
679: #endif
680: #ifdef FALLOC_FL_KEEP_SIZE
681: #define SUPPORT_PREALLOCATION 1
682: #elif defined HAVE_FTRUNCATE
683: #define SUPPORT_PREALLOCATION 1
684: #define PREALLOCATE_NEEDS_TRUNCATE 1
685: #endif
686: #else /* !fallocate */
687: #if defined HAVE_EFFICIENT_POSIX_FALLOCATE && defined HAVE_FTRUNCATE
688: #define SUPPORT_PREALLOCATION 1
689: #define PREALLOCATE_NEEDS_TRUNCATE 1
690: #endif
691: #endif
692:
693: union file_extras {
694: int32 num;
695: uint32 unum;
696: };
697:
698: struct file_struct {
699: const char *dirname; /* The dir info inside the transfer */
700: time_t modtime; /* When the item was last modified */
701: uint32 len32; /* Lowest 32 bits of the file's length */
702: uint16 mode; /* The item's type and permissions */
703: uint16 flags; /* The FLAG_* bits for this item */
704: const char basename[1]; /* The basename (AKA filename) follows */
705: };
706:
707: extern int file_extra_cnt;
708: extern int inc_recurse;
709: extern int uid_ndx;
710: extern int gid_ndx;
711: extern int acls_ndx;
712: extern int xattrs_ndx;
713:
714: #define FILE_STRUCT_LEN (offsetof(struct file_struct, basename))
715: #define EXTRA_LEN (sizeof (union file_extras))
716: #define PTR_EXTRA_CNT ((sizeof (char *) + EXTRA_LEN - 1) / EXTRA_LEN)
717: #define DEV_EXTRA_CNT 2
718: #define DIRNODE_EXTRA_CNT 3
719: #define SUM_EXTRA_CNT ((MAX_DIGEST_LEN + EXTRA_LEN - 1) / EXTRA_LEN)
720:
721: #define REQ_EXTRA(f,ndx) ((union file_extras*)(f) - (ndx))
722: #define OPT_EXTRA(f,bump) ((union file_extras*)(f) - file_extra_cnt - 1 - (bump))
723:
724: #define NSEC_BUMP(f) ((f)->flags & FLAG_MOD_NSEC ? 1 : 0)
725: #define LEN64_BUMP(f) ((f)->flags & FLAG_LENGTH64 ? 1 : 0)
726: #define START_BUMP(f) (NSEC_BUMP(f) + LEN64_BUMP(f))
727: #define HLINK_BUMP(f) ((f)->flags & (FLAG_HLINKED|FLAG_HLINK_DONE) ? inc_recurse+1 : 0)
728: #define ACL_BUMP(f) (acls_ndx ? 1 : 0)
729:
730: /* The length applies to all items. */
731: #if SIZEOF_INT64 < 8
732: #define F_LENGTH(f) ((int64)(f)->len32)
733: #else
734: #define F_LENGTH(f) ((int64)(f)->len32 + ((f)->flags & FLAG_LENGTH64 \
735: ? (int64)OPT_EXTRA(f, NSEC_BUMP(f))->unum << 32 : 0))
736: #endif
737:
738: #define F_MOD_NSEC(f) ((f)->flags & FLAG_MOD_NSEC ? OPT_EXTRA(f, 0)->unum : 0)
739:
740: /* If there is a symlink string, it is always right after the basename */
741: #define F_SYMLINK(f) ((f)->basename + strlen((f)->basename) + 1)
742:
743: /* The sending side always has this available: */
744: #define F_PATHNAME(f) (*(const char**)REQ_EXTRA(f, PTR_EXTRA_CNT))
745:
746: /* The receiving side always has this available: */
747: #define F_DEPTH(f) REQ_EXTRA(f, 1)->num
748:
749: /* When the associated option is on, all entries will have these present: */
750: #define F_OWNER(f) REQ_EXTRA(f, uid_ndx)->unum
751: #define F_GROUP(f) REQ_EXTRA(f, gid_ndx)->unum
752: #define F_ACL(f) REQ_EXTRA(f, acls_ndx)->num
753: #define F_XATTR(f) REQ_EXTRA(f, xattrs_ndx)->num
754: #define F_NDX(f) REQ_EXTRA(f, unsort_ndx)->num
755:
756: /* These items are per-entry optional: */
757: #define F_HL_GNUM(f) OPT_EXTRA(f, START_BUMP(f))->num /* non-dirs */
758: #define F_HL_PREV(f) OPT_EXTRA(f, START_BUMP(f)+inc_recurse)->num /* non-dirs */
759: #define F_DIR_NODE_P(f) (&OPT_EXTRA(f, START_BUMP(f) \
760: + DIRNODE_EXTRA_CNT - 1)->num) /* sender dirs */
761: #define F_DIR_RELNAMES_P(f) (&OPT_EXTRA(f, START_BUMP(f) + DIRNODE_EXTRA_CNT \
762: + PTR_EXTRA_CNT - 1)->num) /* sender dirs */
763: #define F_DIR_DEFACL(f) OPT_EXTRA(f, START_BUMP(f))->unum /* receiver dirs */
764: #define F_DIR_DEV_P(f) (&OPT_EXTRA(f, START_BUMP(f) + ACL_BUMP(f) \
765: + DEV_EXTRA_CNT - 1)->unum) /* receiver dirs */
766:
767: /* This optional item might follow an F_HL_*() item. */
768: #define F_RDEV_P(f) (&OPT_EXTRA(f, START_BUMP(f) + HLINK_BUMP(f) + DEV_EXTRA_CNT - 1)->unum)
769:
770: /* The sum is only present on regular files. */
771: #define F_SUM(f) ((char*)OPT_EXTRA(f, START_BUMP(f) + HLINK_BUMP(f) \
772: + SUM_EXTRA_CNT - 1))
773:
774: /* Some utility defines: */
775: #define F_IS_ACTIVE(f) (f)->basename[0]
776: #define F_IS_HLINKED(f) ((f)->flags & FLAG_HLINKED)
777:
778: #define F_HLINK_NOT_FIRST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_FIRST)
779: #define F_HLINK_NOT_LAST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_LAST)
780:
781: /* These access the F_DIR_DEV_P() and F_RDEV_P() values: */
782: #define DEV_MAJOR(a) (a)[0]
783: #define DEV_MINOR(a) (a)[1]
784:
785: /* These access the F_DIRS_NODE_P() values: */
786: #define DIR_PARENT(a) (a)[0]
787: #define DIR_FIRST_CHILD(a) (a)[1]
788: #define DIR_NEXT_SIBLING(a) (a)[2]
789:
790: /*
791: * Start the flist array at FLIST_START entries and grow it
792: * by doubling until FLIST_LINEAR then grow by FLIST_LINEAR
793: */
794: #define FLIST_START (32 * 1024)
795: #define FLIST_LINEAR (FLIST_START * 512)
796:
797: /*
798: * Extent size for allocation pools: A minimum size of 128KB
799: * is needed to mmap them so that freeing will release the
800: * space to the OS.
801: *
802: * Larger sizes reduce leftover fragments and speed free calls
803: * (when they happen). Smaller sizes increase the chance of
804: * freed allocations freeing whole extents.
805: */
806: #define NORMAL_EXTENT (256 * 1024)
807: #define SMALL_EXTENT (128 * 1024)
808:
809: #define FLIST_TEMP (1<<1)
810:
811: struct file_list {
812: struct file_list *next, *prev;
813: struct file_struct **files, **sorted;
814: alloc_pool_t file_pool;
815: void *pool_boundary;
816: int used, malloced;
817: int low, high; /* 0-relative index values excluding empties */
818: int ndx_start; /* the start offset for inc_recurse mode */
819: int flist_num; /* 1-relative file_list number or 0 */
820: int parent_ndx; /* dir_flist index of parent directory */
821: int in_progress, to_redo;
822: };
823:
824: #define SUMFLG_SAME_OFFSET (1<<0)
825:
826: struct sum_buf {
827: OFF_T offset; /**< offset in file of this chunk */
828: int32 len; /**< length of chunk of file */
829: uint32 sum1; /**< simple checksum */
830: int32 chain; /**< next hash-table collision */
831: short flags; /**< flag bits */
832: char sum2[SUM_LENGTH]; /**< checksum */
833: };
834:
835: struct sum_struct {
836: OFF_T flength; /**< total file length */
837: struct sum_buf *sums; /**< points to info for each chunk */
838: int32 count; /**< how many chunks */
839: int32 blength; /**< block_length */
840: int32 remainder; /**< flength % block_length */
841: int s2length; /**< sum2_length */
842: };
843:
844: struct map_struct {
845: OFF_T file_size; /* File size (from stat) */
846: OFF_T p_offset; /* Window start */
847: OFF_T p_fd_offset; /* offset of cursor in fd ala lseek */
848: char *p; /* Window pointer */
849: int32 p_size; /* Largest window size we allocated */
850: int32 p_len; /* Latest (rounded) window size */
851: int32 def_window_size; /* Default window size */
852: int fd; /* File Descriptor */
853: int status; /* first errno from read errors */
854: };
855:
856: #define FILTRULE_WILD (1<<0) /* pattern has '*', '[', and/or '?' */
857: #define FILTRULE_WILD2 (1<<1) /* pattern has '**' */
858: #define FILTRULE_WILD2_PREFIX (1<<2) /* pattern starts with "**" */
859: #define FILTRULE_WILD3_SUFFIX (1<<3) /* pattern ends with "***" */
860: #define FILTRULE_ABS_PATH (1<<4) /* path-match on absolute path */
861: #define FILTRULE_INCLUDE (1<<5) /* this is an include, not an exclude */
862: #define FILTRULE_DIRECTORY (1<<6) /* this matches only directories */
863: #define FILTRULE_WORD_SPLIT (1<<7) /* split rules on whitespace */
864: #define FILTRULE_NO_INHERIT (1<<8) /* don't inherit these rules */
865: #define FILTRULE_NO_PREFIXES (1<<9) /* parse no prefixes from patterns */
866: #define FILTRULE_MERGE_FILE (1<<10)/* specifies a file to merge */
867: #define FILTRULE_PERDIR_MERGE (1<<11)/* merge-file is searched per-dir */
868: #define FILTRULE_EXCLUDE_SELF (1<<12)/* merge-file name should be excluded */
869: #define FILTRULE_FINISH_SETUP (1<<13)/* per-dir merge file needs setup */
870: #define FILTRULE_NEGATE (1<<14)/* rule matches when pattern does not */
871: #define FILTRULE_CVS_IGNORE (1<<15)/* rule was -C or :C */
872: #define FILTRULE_SENDER_SIDE (1<<16)/* rule applies to the sending side */
873: #define FILTRULE_RECEIVER_SIDE (1<<17)/* rule applies to the receiving side */
874: #define FILTRULE_CLEAR_LIST (1<<18)/* this item is the "!" token */
875: #define FILTRULE_PERISHABLE (1<<19)/* perishable if parent dir goes away */
876:
877: #define FILTRULES_SIDES (FILTRULE_SENDER_SIDE | FILTRULE_RECEIVER_SIDE)
878:
879: typedef struct filter_struct {
880: struct filter_struct *next;
881: char *pattern;
882: uint32 rflags;
883: union {
884: int slash_cnt;
885: struct filter_list_struct *mergelist;
886: } u;
887: } filter_rule;
888:
889: typedef struct filter_list_struct {
890: filter_rule *head;
891: filter_rule *tail;
892: filter_rule *parent_dirscan_head;
893: char *debug_type;
894: } filter_rule_list;
895:
896: struct stats {
897: int64 total_size;
898: int64 total_transferred_size;
899: int64 total_written;
900: int64 total_read;
901: int64 literal_data;
902: int64 matched_data;
903: int64 flist_buildtime;
904: int64 flist_xfertime;
905: int64 flist_size;
906: int num_files, num_dirs, num_symlinks, num_devices, num_specials;
907: int created_files, created_dirs, created_symlinks, created_devices, created_specials;
908: int deleted_files, deleted_dirs, deleted_symlinks, deleted_devices, deleted_specials;
909: int xferred_files;
910: };
911:
912: struct chmod_mode_struct;
913:
914: struct flist_ndx_item {
915: struct flist_ndx_item *next;
916: int ndx;
917: };
918:
919: typedef struct {
920: struct flist_ndx_item *head, *tail;
921: } flist_ndx_list;
922:
923: #define EMPTY_ITEM_LIST {NULL, 0, 0}
924:
925: typedef struct {
926: void *items;
927: size_t count;
928: size_t malloced;
929: } item_list;
930:
931: #define EXPAND_ITEM_LIST(lp, type, incr) \
932: (type*)expand_item_list(lp, sizeof (type), #type, incr)
933:
934: #define EMPTY_XBUF {NULL, 0, 0, 0}
935:
936: typedef struct {
937: char *buf;
938: size_t pos; /* pos = read pos in the buf */
939: size_t len; /* len = chars following pos */
940: size_t size; /* size = total space in buf */
941: } xbuf;
942:
943: #define INIT_XBUF(xb, str, ln, sz) (xb).buf = (str), (xb).len = (ln), (xb).size = (sz), (xb).pos = 0
944: #define INIT_XBUF_STRLEN(xb, str) (xb).buf = (str), (xb).len = strlen((xb).buf), (xb).size = (size_t)-1, (xb).pos = 0
945: /* This one is used to make an output xbuf based on a char[] buffer: */
946: #define INIT_CONST_XBUF(xb, bf) (xb).buf = (bf), (xb).size = sizeof (bf), (xb).len = (xb).pos = 0
947:
948: #define ICB_EXPAND_OUT (1<<0)
949: #define ICB_INCLUDE_BAD (1<<1)
950: #define ICB_INCLUDE_INCOMPLETE (1<<2)
951: #define ICB_CIRCULAR_OUT (1<<3)
952: #define ICB_INIT (1<<4)
953:
954: #define IOBUF_KEEP_BUFS 0
955: #define IOBUF_FREE_BUFS 1
956:
957: #define MPLX_SWITCHING IOBUF_KEEP_BUFS
958: #define MPLX_ALL_DONE IOBUF_FREE_BUFS
959: #define MPLX_TO_BUFFERED 2
960:
961: #define RL_EOL_NULLS (1<<0)
962: #define RL_DUMP_COMMENTS (1<<1)
963: #define RL_CONVERT (1<<2)
964:
965: typedef struct {
966: char name_type;
967: char fname[1]; /* has variable size */
968: } relnamecache;
969:
970: #include "byteorder.h"
971: #include "lib/mdigest.h"
972: #include "lib/wildmatch.h"
973: #include "lib/permstring.h"
974: #include "lib/addrinfo.h"
975:
976: #ifndef __GNUC__
977: #define __attribute__(x)
978: #else
979: # if __GNUC__ <= 2
980: # define NORETURN
981: # endif
982: #endif
983:
984: #define UNUSED(x) x __attribute__((__unused__))
985: #ifndef NORETURN
986: #define NORETURN __attribute__((__noreturn__))
987: #endif
988:
989: typedef struct {
990: STRUCT_STAT st;
991: #ifdef SUPPORT_ACLS
992: struct rsync_acl *acc_acl; /* access ACL */
993: struct rsync_acl *def_acl; /* default ACL */
994: #endif
995: #ifdef SUPPORT_XATTRS
996: item_list *xattr;
997: #endif
998: } stat_x;
999:
1000: #define ACL_READY(sx) ((sx).acc_acl != NULL)
1001: #define XATTR_READY(sx) ((sx).xattr != NULL)
1002:
1003: #include "proto.h"
1004:
1005: #ifndef SUPPORT_XATTRS
1006: #define x_stat(fn,fst,xst) do_stat(fn,fst)
1007: #define x_lstat(fn,fst,xst) do_lstat(fn,fst)
1008: #define x_fstat(fd,fst,xst) do_fstat(fd,fst)
1009: #endif
1010:
1011: /* We have replacement versions of these if they're missing. */
1012: #ifndef HAVE_ASPRINTF
1013: int asprintf(char **ptr, const char *format, ...);
1014: #endif
1015:
1016: #ifndef HAVE_VASPRINTF
1017: int vasprintf(char **ptr, const char *format, va_list ap);
1018: #endif
1019:
1020: #if !defined HAVE_VSNPRINTF || !defined HAVE_C99_VSNPRINTF
1021: #define vsnprintf rsync_vsnprintf
1022: int vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1023: #endif
1024:
1025: #if !defined HAVE_SNPRINTF || !defined HAVE_C99_VSNPRINTF
1026: #define snprintf rsync_snprintf
1027: int snprintf(char *str, size_t count, const char *fmt,...);
1028: #endif
1029:
1030:
1031: #ifndef HAVE_STRERROR
1032: extern char *sys_errlist[];
1033: #define strerror(i) sys_errlist[i]
1034: #endif
1035:
1036: #ifndef HAVE_STRCHR
1037: # define strchr index
1038: # define strrchr rindex
1039: #endif
1040:
1041: #ifndef HAVE_ERRNO_DECL
1042: extern int errno;
1043: #endif
1044:
1045: #ifdef HAVE_READLINK
1046: #define SUPPORT_LINKS 1
1047: #if !defined NO_SYMLINK_XATTRS && !defined NO_SYMLINK_USER_XATTRS
1048: #define do_readlink(path, buf, bufsiz) readlink(path, buf, bufsiz)
1049: #endif
1050: #endif
1051: #ifdef HAVE_LINK
1052: #define SUPPORT_HARD_LINKS 1
1053: #endif
1054:
1055: #ifdef HAVE_SIGACTION
1056: #define SIGACTION(n,h) sigact.sa_handler=(h), sigaction((n),&sigact,NULL)
1057: #define signal(n,h) we_need_to_call_SIGACTION_not_signal(n,h)
1058: #else
1059: #define SIGACTION(n,h) signal(n,h)
1060: #endif
1061:
1062: #ifndef EWOULDBLOCK
1063: #define EWOULDBLOCK EAGAIN
1064: #endif
1065:
1066: #ifndef STDIN_FILENO
1067: #define STDIN_FILENO 0
1068: #endif
1069:
1070: #ifndef STDOUT_FILENO
1071: #define STDOUT_FILENO 1
1072: #endif
1073:
1074: #ifndef STDERR_FILENO
1075: #define STDERR_FILENO 2
1076: #endif
1077:
1078: #ifndef S_IRUSR
1079: #define S_IRUSR 0400
1080: #endif
1081:
1082: #ifndef S_IWUSR
1083: #define S_IWUSR 0200
1084: #endif
1085:
1086: #ifndef ACCESSPERMS
1087: #define ACCESSPERMS 0777
1088: #endif
1089:
1090: #ifndef S_ISVTX
1091: #define S_ISVTX 0
1092: #endif
1093:
1094: #define CHMOD_BITS (S_ISUID | S_ISGID | S_ISVTX | ACCESSPERMS)
1095:
1096: #ifndef _S_IFMT
1097: #define _S_IFMT 0170000
1098: #endif
1099:
1100: #ifndef _S_IFLNK
1101: #define _S_IFLNK 0120000
1102: #endif
1103:
1104: #ifndef S_ISLNK
1105: #define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK))
1106: #endif
1107:
1108: #ifndef S_ISBLK
1109: #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
1110: #endif
1111:
1112: #ifndef S_ISCHR
1113: #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
1114: #endif
1115:
1116: #ifndef S_ISSOCK
1117: #ifdef _S_IFSOCK
1118: #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
1119: #else
1120: #define S_ISSOCK(mode) (0)
1121: #endif
1122: #endif
1123:
1124: #ifndef S_ISFIFO
1125: #ifdef _S_IFIFO
1126: #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
1127: #else
1128: #define S_ISFIFO(mode) (0)
1129: #endif
1130: #endif
1131:
1132: #ifndef S_ISDIR
1133: #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
1134: #endif
1135:
1136: #ifndef S_ISREG
1137: #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
1138: #endif
1139:
1140: /* work out what fcntl flag to use for non-blocking */
1141: #ifdef O_NONBLOCK
1142: # define NONBLOCK_FLAG O_NONBLOCK
1143: #elif defined SYSV
1144: # define NONBLOCK_FLAG O_NDELAY
1145: #else
1146: # define NONBLOCK_FLAG FNDELAY
1147: #endif
1148:
1149: #ifndef INADDR_LOOPBACK
1150: #define INADDR_LOOPBACK 0x7f000001
1151: #endif
1152:
1153: #ifndef INADDR_NONE
1154: #define INADDR_NONE 0xffffffff
1155: #endif
1156:
1157: #define IS_SPECIAL(mode) (S_ISSOCK(mode) || S_ISFIFO(mode))
1158: #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode))
1159:
1160: #define PRESERVE_FILE_TIMES (1<<0)
1161: #define PRESERVE_DIR_TIMES (1<<1)
1162: #define PRESERVE_LINK_TIMES (1<<2)
1163:
1164: /* Initial mask on permissions given to temporary files. Mask off setuid
1165: bits and group access because of potential race-condition security
1166: holes, and mask other access because mode 707 is bizarre */
1167: #define INITACCESSPERMS 0700
1168:
1169: /* handler for null strings in printf format */
1170: #define NS(s) ((s)?(s):"<NULL>")
1171:
1172: /* Convenient wrappers for malloc and realloc. Use them. */
1173: #define new(type) ((type*)malloc(sizeof (type)))
1174: #define new0(type) ((type*)calloc(1, sizeof (type)))
1175: #define new_array(type, num) ((type*)_new_array((num), sizeof (type), 0))
1176: #define new_array0(type, num) ((type*)_new_array((num), sizeof (type), 1))
1177: #define realloc_array(ptr, type, num) ((type*)_realloc_array((ptr), sizeof(type), (num)))
1178:
1179: /* use magic gcc attributes to catch format errors */
1180: void rprintf(enum logcode , const char *, ...)
1181: __attribute__((format (printf, 2, 3)))
1182: ;
1183:
1184: /* This is just like rprintf, but it also tries to print some
1185: * representation of the error code. Normally errcode = errno. */
1186: void rsyserr(enum logcode, int, const char *, ...)
1187: __attribute__((format (printf, 3, 4)))
1188: ;
1189:
1190: /* Make sure that the O_BINARY flag is defined. */
1191: #ifndef O_BINARY
1192: #define O_BINARY 0
1193: #endif
1194:
1195: #ifndef HAVE_STRLCPY
1196: size_t strlcpy(char *d, const char *s, size_t bufsize);
1197: #endif
1198:
1199: #ifndef HAVE_STRLCAT
1200: size_t strlcat(char *d, const char *s, size_t bufsize);
1201: #endif
1202:
1203: #ifndef WEXITSTATUS
1204: #define WEXITSTATUS(stat) ((int)(((stat)>>8)&0xFF))
1205: #endif
1206: #ifndef WIFEXITED
1207: #define WIFEXITED(stat) ((int)((stat)&0xFF) == 0)
1208: #endif
1209:
1210: #define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__)
1211:
1212: #ifdef HAVE_GETEUID
1213: #define MY_UID() geteuid()
1214: #else
1215: #define MY_UID() getuid()
1216: #endif
1217:
1218: #ifdef HAVE_GETEGID
1219: #define MY_GID() getegid()
1220: #else
1221: #define MY_GID() getgid()
1222: #endif
1223:
1224: #ifdef FORCE_FD_ZERO_MEMSET
1225: #undef FD_ZERO
1226: #define FD_ZERO(fdsetp) memset(fdsetp, 0, sizeof (fd_set))
1227: #endif
1228:
1229: extern short info_levels[], debug_levels[];
1230:
1231: #define INFO_GTE(flag, lvl) (info_levels[INFO_##flag] >= (lvl))
1232: #define INFO_EQ(flag, lvl) (info_levels[INFO_##flag] == (lvl))
1233: #define DEBUG_GTE(flag, lvl) (debug_levels[DEBUG_##flag] >= (lvl))
1234: #define DEBUG_EQ(flag, lvl) (debug_levels[DEBUG_##flag] == (lvl))
1235:
1236: #define INFO_BACKUP 0
1237: #define INFO_COPY (INFO_BACKUP+1)
1238: #define INFO_DEL (INFO_COPY+1)
1239: #define INFO_FLIST (INFO_DEL+1)
1240: #define INFO_MISC (INFO_FLIST+1)
1241: #define INFO_MOUNT (INFO_MISC+1)
1242: #define INFO_NAME (INFO_MOUNT+1)
1243: #define INFO_PROGRESS (INFO_NAME+1)
1244: #define INFO_REMOVE (INFO_PROGRESS+1)
1245: #define INFO_SKIP (INFO_REMOVE+1)
1246: #define INFO_STATS (INFO_SKIP+1)
1247: #define INFO_SYMSAFE (INFO_STATS+1)
1248:
1249: #define COUNT_INFO (INFO_SYMSAFE+1)
1250:
1251: #define DEBUG_ACL 0
1252: #define DEBUG_BACKUP (DEBUG_ACL+1)
1253: #define DEBUG_BIND (DEBUG_BACKUP+1)
1254: #define DEBUG_CHDIR (DEBUG_BIND+1)
1255: #define DEBUG_CONNECT (DEBUG_CHDIR+1)
1256: #define DEBUG_CMD (DEBUG_CONNECT+1)
1257: #define DEBUG_DEL (DEBUG_CMD+1)
1258: #define DEBUG_DELTASUM (DEBUG_DEL+1)
1259: #define DEBUG_DUP (DEBUG_DELTASUM+1)
1260: #define DEBUG_EXIT (DEBUG_DUP+1)
1261: #define DEBUG_FILTER (DEBUG_EXIT+1)
1262: #define DEBUG_FLIST (DEBUG_FILTER+1)
1263: #define DEBUG_FUZZY (DEBUG_FLIST+1)
1264: #define DEBUG_GENR (DEBUG_FUZZY+1)
1265: #define DEBUG_HASH (DEBUG_GENR+1)
1266: #define DEBUG_HLINK (DEBUG_HASH+1)
1267: #define DEBUG_ICONV (DEBUG_HLINK+1)
1268: #define DEBUG_IO (DEBUG_ICONV+1)
1269: #define DEBUG_OWN (DEBUG_IO+1)
1270: #define DEBUG_PROTO (DEBUG_OWN+1)
1271: #define DEBUG_RECV (DEBUG_PROTO+1)
1272: #define DEBUG_SEND (DEBUG_RECV+1)
1273: #define DEBUG_TIME (DEBUG_SEND+1)
1274:
1275: #define COUNT_DEBUG (DEBUG_TIME+1)
1276:
1277: #ifndef HAVE_INET_NTOP
1278: const char *inet_ntop(int af, const void *src, char *dst, size_t size);
1279: #endif
1280:
1281: #ifndef HAVE_INET_PTON
1282: int inet_pton(int af, const char *src, void *dst);
1283: #endif
1284:
1285: #ifndef HAVE_GETPASS
1286: char *getpass(const char *prompt);
1287: #endif
1288:
1289: #ifdef MAINTAINER_MODE
1290: const char *get_panic_action(void);
1291: #endif
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