rsync.h

   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) 2003-2008 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
  65 /* These flags are used in the live flist data. */
  66
  67 #define FLAG_TOP_DIR (1<<0)     /* sender/receiver/generator */
  68 #define FLAG_FILE_SENT (1<<1)   /* sender/receiver/generator */
  69 #define FLAG_DIR_CREATED (1<<1) /* generator */
  70 #define FLAG_CONTENT_DIR (1<<2) /* sender/receiver/generator */
  71 #define FLAG_MOUNT_DIR (1<<3)   /* sender/generator (dirs only) */
  72 #define FLAG_SKIP_HLINK (1<<3)  /* receiver/generator (w/FLAG_HLINKED) */
  73 #define FLAG_DUPLICATE (1<<4)   /* sender */
  74 #define FLAG_MISSING_DIR (1<<4) /* generator */
  75 #define FLAG_HLINKED (1<<5)     /* receiver/generator (checked on all types) */
  76 #define FLAG_HLINK_FIRST (1<<6) /* receiver/generator (w/FLAG_HLINKED) */
  77 #define FLAG_IMPLIED_DIR (1<<6) /* sender/receiver/generator (dirs only) */
  78 #define FLAG_HLINK_LAST (1<<7)  /* receiver/generator */
  79 #define FLAG_HLINK_DONE (1<<8)  /* receiver/generator (checked on all types) */
  80 #define FLAG_LENGTH64 (1<<9)    /* sender/receiver/generator */
  81 #define FLAG_SKIP_GROUP (1<<10) /* receiver/generator */
  82 #define FLAG_TIME_FAILED (1<<11)/* generator */
  83
  84 /* These flags are passed to functions but not stored. */
  85
  86 #define FLAG_DIVERT_DIRS (1<<16)/* sender */
  87
  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)))
  92
  93 /* update this if you make incompatible changes */
  94 #define PROTOCOL_VERSION 30
  95
  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
 100
 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.
 105  *
 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.
 110  *
 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. */
 117
 118 #define MIN_PROTOCOL_VERSION 20
 119 #define OLD_PROTOCOL_VERSION 25
 120 #define MAX_PROTOCOL_VERSION 40
 121
 122 #define FILECNT_LOOKAHEAD 1000
 123
 124 #define RSYNC_PORT 873
 125
 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)
 132
 133 /* For compatibility with older rsyncs */
 134 #define OLD_MAX_BLOCK_SIZE ((int32)1 << 29)
 135
 136 #define IOERR_GENERAL   (1<<0) /* For backward compatibility, this must == 1 */
 137 #define IOERR_VANISHED  (1<<1)
 138 #define IOERR_DEL_LIMIT (1<<2)
 139
 140 #define MAX_ARGS 1000
 141 #define MAX_BASIS_DIRS 20
 142 #define MAX_SERVER_ARGS (MAX_BASIS_DIRS*2 + 100)
 143
 144 #define MPLEX_BASE 7
 145
 146 #define NO_FILTERS      0
 147 #define SERVER_FILTERS  1
 148 #define ALL_FILTERS     2
 149
 150 #define XFLG_FATAL_ERRORS       (1<<0)
 151 #define XFLG_OLD_PREFIXES       (1<<1)
 152 #define XFLG_ANCHORED2ABS       (1<<2) /* leading slash indicates absolute */
 153 #define XFLG_ABS_IF_SLASH       (1<<3) /* leading or interior slash is absolute */
 154 #define XFLG_DIR2WILD3          (1<<4) /* dir/ match gets trailing *** added */
 155
 156 #define ATTRS_REPORT            (1<<0)
 157 #define ATTRS_SKIP_MTIME        (1<<1)
 158
 159 #define FULL_FLUSH      1
 160 #define NORMAL_FLUSH    0
 161
 162 #define PDIR_CREATE     1
 163 #define PDIR_DELETE     0
 164
 165 /* Note: 0x00 - 0x7F are used for basis_dir[] indexes! */
 166 #define FNAMECMP_BASIS_DIR_LOW  0x00 /* Must remain 0! */
 167 #define FNAMECMP_BASIS_DIR_HIGH 0x7F
 168 #define FNAMECMP_FNAME          0x80
 169 #define FNAMECMP_PARTIAL_DIR    0x81
 170 #define FNAMECMP_BACKUP         0x82
 171 #define FNAMECMP_FUZZY          0x83
 172
 173 /* For use by the itemize_changes code */
 174 #define ITEM_REPORT_ATIME (1<<0)
 175 #define ITEM_REPORT_CHANGE (1<<1)
 176 #define ITEM_REPORT_SIZE (1<<2)     /* regular files only */
 177 #define ITEM_REPORT_TIMEFAIL (1<<2) /* symlinks only */
 178 #define ITEM_REPORT_TIME (1<<3)
 179 #define ITEM_REPORT_PERMS (1<<4)
 180 #define ITEM_REPORT_OWNER (1<<5)
 181 #define ITEM_REPORT_GROUP (1<<6)
 182 #define ITEM_REPORT_ACL (1<<7)
 183 #define ITEM_REPORT_XATTR (1<<8)
 184 #define ITEM_BASIS_TYPE_FOLLOWS (1<<11)
 185 #define ITEM_XNAME_FOLLOWS (1<<12)
 186 #define ITEM_IS_NEW (1<<13)
 187 #define ITEM_LOCAL_CHANGE (1<<14)
 188 #define ITEM_TRANSFER (1<<15)
 189 /* These are outside the range of the transmitted flags. */
 190 #define ITEM_MISSING_DATA (1<<16)          /* used by log_formatted() */
 191 #define ITEM_DELETED (1<<17)               /* used by log_formatted() */
 192 #define ITEM_MATCHED (1<<18)               /* used by itemize() */
 193
 194 #define SIGNIFICANT_ITEM_FLAGS (~(\
 195         ITEM_BASIS_TYPE_FOLLOWS | ITEM_XNAME_FOLLOWS | ITEM_LOCAL_CHANGE))
 196
 197 #define CFN_KEEP_DOT_DIRS (1<<0)
 198 #define CFN_KEEP_TRAILING_SLASH (1<<1)
 199 #define CFN_DROP_TRAILING_DOT_DIR (1<<2)
 200 #define CFN_COLLAPSE_DOT_DOT_DIRS (1<<3)
 201
 202 #define SP_DEFAULT 0
 203 #define SP_KEEP_DOT_DIRS (1<<0)
 204
 205 #define CD_NORMAL 0
 206 #define CD_SKIP_CHDIR 1
 207
 208 /* Log-message categories.  FLOG only goes to the log file, not the client;
 209  * FCLIENT is the opposite. */
 210 enum logcode {
 211     FNONE=0, /* never sent */
 212     FERROR_XFER=1, FINFO=2, /* sent over socket for any protocol */
 213     FERROR=3, FWARNING=4, /* sent over socket for protocols >= 30 */
 214     FERROR_SOCKET=5, FLOG=6, /* only sent via receiver -> generator pipe */
 215     FERROR_UTF8=8, /* only sent via receiver -> generator pipe */
 216     FCLIENT=7 /* never transmitted (e.g. server converts to FINFO) */
 217 };
 218
 219 /* Messages types that are sent over the message channel.  The logcode
 220  * values must all be present here with identical numbers. */
 221 enum msgcode {
 222         MSG_DATA=0,     /* raw data on the multiplexed stream */
 223         MSG_ERROR_XFER=FERROR_XFER, MSG_INFO=FINFO, /* remote logging */
 224         MSG_ERROR=FERROR, MSG_WARNING=FWARNING, /* protocol-30 remote logging */
 225         MSG_ERROR_SOCKET=FERROR_SOCKET, /* sibling logging */
 226         MSG_ERROR_UTF8=FERROR_UTF8, /* sibling logging */
 227         MSG_LOG=FLOG, MSG_CLIENT=FCLIENT, /* sibling logging */
 228         MSG_REDO=9,     /* reprocess indicated flist index */
 229         MSG_FLIST=20,   /* extra file list over sibling socket */
 230         MSG_FLIST_EOF=21,/* we've transmitted all the file lists */
 231         MSG_IO_ERROR=22,/* the sending side had an I/O error */
 232         MSG_NOOP=42,    /* a do-nothing message */
 233         MSG_SUCCESS=100,/* successfully updated indicated flist index */
 234         MSG_DELETED=101,/* successfully deleted a file on receiving side */
 235         MSG_NO_SEND=102,/* sender failed to open a file we wanted */
 236         MSG_DONE=86     /* current phase is done */
 237 };
 238
 239 #define NDX_DONE -1
 240 #define NDX_FLIST_EOF -2
 241 #define NDX_FLIST_OFFSET -101
 242
 243 #include "errcode.h"
 244
 245 #include "config.h"
 246
 247 /* The default RSYNC_RSH is always set in config.h. */
 248
 249 #include <stdio.h>
 250 #ifdef HAVE_SYS_TYPES_H
 251 # include <sys/types.h>
 252 #endif
 253 #ifdef HAVE_SYS_STAT_H
 254 # include <sys/stat.h>
 255 #endif
 256 #ifdef STDC_HEADERS
 257 # include <stdlib.h>
 258 # include <stddef.h>
 259 #else
 260 # ifdef HAVE_STDLIB_H
 261 #  include <stdlib.h>
 262 # endif
 263 #endif
 264 #ifdef HAVE_STRING_H
 265 # if !defined STDC_HEADERS && defined HAVE_MEMORY_H
 266 #  include <memory.h>
 267 # endif
 268 # include <string.h>
 269 #endif
 270 #ifdef HAVE_STRINGS_H
 271 # include <strings.h>
 272 #endif
 273 #ifdef HAVE_INTTYPES_H
 274 # include <inttypes.h>
 275 #endif
 276 #ifdef HAVE_STDINT_H
 277 # include <stdint.h>
 278 #endif
 279 #ifdef HAVE_UNISTD_H
 280 # include <unistd.h>
 281 #endif
 282
 283 #ifdef HAVE_SYS_PARAM_H
 284 #include <sys/param.h>
 285 #endif
 286
 287 #if defined HAVE_MALLOC_H && (defined HAVE_MALLINFO || !defined HAVE_STDLIB_H)
 288 #include <malloc.h>
 289 #endif
 290
 291 #ifdef HAVE_SYS_SOCKET_H
 292 #include <sys/socket.h>
 293 #endif
 294
 295 #ifdef TIME_WITH_SYS_TIME
 296 #include <sys/time.h>
 297 #include <time.h>
 298 #else
 299 #ifdef HAVE_SYS_TIME_H
 300 #include <sys/time.h>
 301 #else
 302 #include <time.h>
 303 #endif
 304 #endif
 305
 306 #ifdef HAVE_FCNTL_H
 307 #include <fcntl.h>
 308 #else
 309 #ifdef HAVE_SYS_FCNTL_H
 310 #include <sys/fcntl.h>
 311 #endif
 312 #endif
 313
 314 #ifdef HAVE_SYS_IOCTL_H
 315 #include <sys/ioctl.h>
 316 #endif
 317
 318 #ifdef HAVE_SYS_FILIO_H
 319 #include <sys/filio.h>
 320 #endif
 321
 322 #include <signal.h>
 323 #ifdef HAVE_SYS_WAIT_H
 324 #include <sys/wait.h>
 325 #endif
 326 #ifdef HAVE_CTYPE_H
 327 #include <ctype.h>
 328 #endif
 329 #ifdef HAVE_GRP_H
 330 #include <grp.h>
 331 #endif
 332 #include <errno.h>
 333
 334 #ifdef HAVE_UTIME_H
 335 #include <utime.h>
 336 #endif
 337
 338 #ifdef HAVE_SYS_SELECT_H
 339 #include <sys/select.h>
 340 #endif
 341
 342 #ifdef HAVE_SYS_MODE_H
 343 /* apparently AIX needs this for S_ISLNK */
 344 #ifndef S_ISLNK
 345 #include <sys/mode.h>
 346 #endif
 347 #endif
 348
 349 /* these are needed for the uid/gid mapping code */
 350 #include <pwd.h>
 351 #include <grp.h>
 352
 353 #include <stdarg.h>
 354 #include <netinet/in.h>
 355 #include <arpa/inet.h>
 356 #ifdef HAVE_NETDB_H
 357 #include <netdb.h>
 358 #endif
 359 #include <syslog.h>
 360 #include <sys/file.h>
 361
 362 #ifdef HAVE_DIRENT_H
 363 # include <dirent.h>
 364 #else
 365 # define dirent direct
 366 # ifdef HAVE_SYS_NDIR_H
 367 #  include <sys/ndir.h>
 368 # endif
 369 # ifdef HAVE_SYS_DIR_H
 370 #  include <sys/dir.h>
 371 # endif
 372 # ifdef HAVE_NDIR_H
 373 #  include <ndir.h>
 374 # endif
 375 #endif
 376
 377 #ifdef MAJOR_IN_MKDEV
 378 #include <sys/mkdev.h>
 379 # if !defined makedev && (defined mkdev || defined _WIN32 || defined __WIN32__)
 380 #  define makedev mkdev
 381 # endif
 382 #elif defined MAJOR_IN_SYSMACROS
 383 #include <sys/sysmacros.h>
 384 #endif
 385
 386 #ifdef MAKEDEV_TAKES_3_ARGS
 387 #define MAKEDEV(devmajor,devminor) makedev(0,devmajor,devminor)
 388 #else
 389 #define MAKEDEV(devmajor,devminor) makedev(devmajor,devminor)
 390 #endif
 391
 392 #ifdef HAVE_COMPAT_H
 393 #include <compat.h>
 394 #endif
 395
 396 #ifdef HAVE_LIMITS_H
 397 # include <limits.h>
 398 #endif
 399
 400 #if defined USE_ICONV_OPEN && defined HAVE_ICONV_H
 401 #include <iconv.h>
 402 #ifndef ICONV_CONST
 403 #define ICONV_CONST
 404 #endif
 405 #else
 406 #ifdef ICONV_CONST
 407 #undef ICONV_CONST
 408 #endif
 409 #ifdef ICONV_OPTION
 410 #undef ICONV_OPTION
 411 #endif
 412 #ifdef iconv_t
 413 #undef iconv_t
 414 #endif
 415 #define iconv_t int
 416 #endif
 417
 418 #include <assert.h>
 419
 420 #include "lib/pool_alloc.h"
 421
 422 #ifndef HAVE_ID_T
 423 typedef unsigned int id_t;
 424 #endif
 425 #ifndef HAVE_PID_T
 426 typedef int pid_t;
 427 #endif
 428 #ifndef HAVE_MODE_T
 429 typedef unsigned int mode_t;
 430 #endif
 431 #ifndef HAVE_OFF_T
 432 typedef long off_t;
 433 #undef SIZEOF_OFF_T
 434 #define SIZEOF_OFF_T SIZEOF_LONG
 435 #endif
 436 #ifndef HAVE_SIZE_T
 437 typedef unsigned int size_t;
 438 #endif
 439
 440 #define BOOL int
 441
 442 #ifndef uchar
 443 #define uchar unsigned char
 444 #endif
 445
 446 #ifdef SIGNED_CHAR_OK
 447 #define schar signed char
 448 #else
 449 #define schar char
 450 #endif
 451
 452 #ifndef int16
 453 #if SIZEOF_INT16_T == 2
 454 # define int16 int16_t
 455 #else
 456 # define int16 short
 457 #endif
 458 #endif
 459
 460 #ifndef uint16
 461 #if SIZEOF_UINT16_T == 2
 462 # define uint16 uint16_t
 463 #else
 464 # define uint16 unsigned int16
 465 #endif
 466 #endif
 467
 468 /* Find a variable that is either exactly 32-bits or longer.
 469  * If some code depends on 32-bit truncation, it will need to
 470  * take special action in a "#if SIZEOF_INT32 > 4" section. */
 471 #ifndef int32
 472 #if SIZEOF_INT32_T == 4
 473 # define int32 int32_t
 474 # define SIZEOF_INT32 4
 475 #elif SIZEOF_INT == 4
 476 # define int32 int
 477 # define SIZEOF_INT32 4
 478 #elif SIZEOF_LONG == 4
 479 # define int32 long
 480 # define SIZEOF_INT32 4
 481 #elif SIZEOF_SHORT == 4
 482 # define int32 short
 483 # define SIZEOF_INT32 4
 484 #elif SIZEOF_INT > 4
 485 # define int32 int
 486 # define SIZEOF_INT32 SIZEOF_INT
 487 #elif SIZEOF_LONG > 4
 488 # define int32 long
 489 # define SIZEOF_INT32 SIZEOF_LONG
 490 #else
 491 # error Could not find a 32-bit integer variable
 492 #endif
 493 #else
 494 # define SIZEOF_INT32 4
 495 #endif
 496
 497 #ifndef uint32
 498 #if SIZEOF_UINT32_T == 4
 499 # define uint32 uint32_t
 500 #else
 501 # define uint32 unsigned int32
 502 #endif
 503 #endif
 504
 505 #if SIZEOF_OFF_T == 8 || !SIZEOF_OFF64_T || !defined HAVE_STRUCT_STAT64
 506 #define OFF_T off_t
 507 #define STRUCT_STAT struct stat
 508 #define SIZEOF_CAPITAL_OFF_T SIZEOF_OFF_T
 509 #else
 510 #define OFF_T off64_t
 511 #define STRUCT_STAT struct stat64
 512 #define USE_STAT64_FUNCS 1
 513 #define SIZEOF_CAPITAL_OFF_T SIZEOF_OFF64_T
 514 #endif
 515
 516 /* CAVEAT: on some systems, int64 will really be a 32-bit integer IFF
 517  * that's the maximum size the file system can handle and there is no
 518  * 64-bit type available.  The rsync source must therefore take steps
 519  * to ensure that any code that really requires a 64-bit integer has
 520  * it (e.g. the checksum code uses two 32-bit integers for its 64-bit
 521  * counter). */
 522 #if SIZEOF_INT64_T == 8
 523 # define int64 int64_t
 524 # define SIZEOF_INT64 8
 525 #elif SIZEOF_LONG == 8
 526 # define int64 long
 527 # define SIZEOF_INT64 8
 528 #elif SIZEOF_INT == 8
 529 # define int64 int
 530 # define SIZEOF_INT64 8
 531 #elif SIZEOF_LONG_LONG == 8
 532 # define int64 long long
 533 # define SIZEOF_INT64 8
 534 #elif SIZEOF_OFF64_T == 8
 535 # define int64 off64_t
 536 # define SIZEOF_INT64 8
 537 #elif SIZEOF_OFF_T == 8
 538 # define int64 off_t
 539 # define SIZEOF_INT64 8
 540 #elif SIZEOF_INT > 8
 541 # define int64 int
 542 # define SIZEOF_INT64 SIZEOF_INT
 543 #elif SIZEOF_LONG > 8
 544 # define int64 long
 545 # define SIZEOF_INT64 SIZEOF_LONG
 546 #elif SIZEOF_LONG_LONG > 8
 547 # define int64 long long
 548 # define SIZEOF_INT64 SIZEOF_LONG_LONG
 549 #else
 550 /* As long as it gets... */
 551 # define int64 off_t
 552 # define SIZEOF_INT64 SIZEOF_OFF_T
 553 #endif
 554
 555 struct hashtable {
 556         void *nodes;
 557         int32 size, entries;
 558         uint32 node_size;
 559         int key64;
 560 };
 561
 562 struct ht_int32_node {
 563         void *data;
 564         int32 key;
 565 };
 566
 567 struct ht_int64_node {
 568         void *data;
 569         int64 key;
 570 };
 571
 572 #define HT_NODE(tbl, bkts, i) ((void*)((char*)(bkts) + (i)*(tbl)->node_size))
 573 #define HT_KEY(node, k64) ((k64)? ((struct ht_int64_node*)(node))->key \
 574                          : (int64)((struct ht_int32_node*)(node))->key)
 575
 576 #ifndef MIN
 577 #define MIN(a,b) ((a)<(b)?(a):(b))
 578 #endif
 579
 580 #ifndef MAX
 581 #define MAX(a,b) ((a)>(b)?(a):(b))
 582 #endif
 583
 584 #ifndef MAXHOSTNAMELEN
 585 #define MAXHOSTNAMELEN 256
 586 #endif
 587
 588 #define SUM_LENGTH 16
 589 #define SHORT_SUM_LENGTH 2
 590 #define BLOCKSUM_BIAS 10
 591
 592 #ifndef MAXPATHLEN
 593 #define MAXPATHLEN 1024
 594 #endif
 595
 596 /* We want a roomy line buffer that can hold more than MAXPATHLEN,
 597  * and significantly more than an overly short MAXPATHLEN. */
 598 #if MAXPATHLEN < 4096
 599 #define BIGPATHBUFLEN (4096+1024)
 600 #else
 601 #define BIGPATHBUFLEN (MAXPATHLEN+1024)
 602 #endif
 603
 604 #ifndef NAME_MAX
 605 #define NAME_MAX 255
 606 #endif
 607
 608 #ifndef INADDR_NONE
 609 #define INADDR_NONE 0xffffffff
 610 #endif
 611
 612 #ifndef IN_LOOPBACKNET
 613 #define IN_LOOPBACKNET 127
 614 #endif
 615
 616 #if HAVE_UNIXWARE_ACLS|HAVE_SOLARIS_ACLS|HAVE_HPUX_ACLS
 617 #define ACLS_NEED_MASK 1
 618 #endif
 619
 620 union file_extras {
 621         int32 num;
 622         uint32 unum;
 623 };
 624
 625 struct file_struct {
 626         const char *dirname;    /* The dir info inside the transfer */
 627         time_t modtime;         /* When the item was last modified */
 628         uint32 len32;           /* Lowest 32 bits of the file's length */
 629         uint16 mode;            /* The item's type and permissions */
 630         uint16 flags;           /* The FLAG_* bits for this item */
 631         const char basename[1]; /* The basename (AKA filename) follows */
 632 };
 633
 634 extern int file_extra_cnt;
 635 extern int inc_recurse;
 636 extern int uid_ndx;
 637 extern int gid_ndx;
 638 extern int acls_ndx;
 639 extern int xattrs_ndx;
 640
 641 #define FILE_STRUCT_LEN (offsetof(struct file_struct, basename))
 642 #define EXTRA_LEN (sizeof (union file_extras))
 643 #define PTR_EXTRA_CNT ((sizeof (char *) + EXTRA_LEN - 1) / EXTRA_LEN)
 644 #define DEV_EXTRA_CNT 2
 645 #define DIRNODE_EXTRA_CNT 3
 646 #define SUM_EXTRA_CNT ((MAX_DIGEST_LEN + EXTRA_LEN - 1) / EXTRA_LEN)
 647
 648 #define REQ_EXTRA(f,ndx) ((union file_extras*)(f) - (ndx))
 649 #define OPT_EXTRA(f,bump) ((union file_extras*)(f) - file_extra_cnt - 1 - (bump))
 650
 651 #define LEN64_BUMP(f) ((f)->flags & FLAG_LENGTH64 ? 1 : 0)
 652 #define HLINK_BUMP(f) ((f)->flags & (FLAG_HLINKED|FLAG_HLINK_DONE) ? inc_recurse+1 : 0)
 653 #define ACL_BUMP(f) (acls_ndx ? 1 : 0)
 654
 655 /* The length applies to all items. */
 656 #if SIZEOF_INT64 < 8
 657 #define F_LENGTH(f) ((int64)(f)->len32)
 658 #else
 659 #define F_LENGTH(f) ((int64)(f)->len32 + ((f)->flags & FLAG_LENGTH64 \
 660                    ? (int64)OPT_EXTRA(f, 0)->unum << 32 : 0))
 661 #endif
 662
 663 /* If there is a symlink string, it is always right after the basename */
 664 #define F_SYMLINK(f) ((f)->basename + strlen((f)->basename) + 1)
 665
 666 /* The sending side always has this available: */
 667 #define F_PATHNAME(f) (*(const char**)REQ_EXTRA(f, PTR_EXTRA_CNT))
 668
 669 /* The receiving side always has this available: */
 670 #define F_DEPTH(f) REQ_EXTRA(f, 1)->num
 671
 672 /* When the associated option is on, all entries will have these present: */
 673 #define F_OWNER(f) REQ_EXTRA(f, uid_ndx)->unum
 674 #define F_GROUP(f) REQ_EXTRA(f, gid_ndx)->unum
 675 #define F_ACL(f) REQ_EXTRA(f, acls_ndx)->num
 676 #define F_XATTR(f) REQ_EXTRA(f, xattrs_ndx)->num
 677 #define F_NDX(f) REQ_EXTRA(f, unsort_ndx)->num
 678
 679 /* These items are per-entry optional: */
 680 #define F_HL_GNUM(f) OPT_EXTRA(f, LEN64_BUMP(f))->num /* non-dirs */
 681 #define F_HL_PREV(f) OPT_EXTRA(f, LEN64_BUMP(f)+inc_recurse)->num /* non-dirs */
 682 #define F_DIR_NODE_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) \
 683                                 + DIRNODE_EXTRA_CNT - 1)->num) /* sender dirs */
 684 #define F_DIR_RELNAMES_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) + DIRNODE_EXTRA_CNT \
 685                                 + PTR_EXTRA_CNT - 1)->num) /* sender dirs */
 686 #define F_DIR_DEFACL(f) OPT_EXTRA(f, LEN64_BUMP(f))->unum /* receiver dirs */
 687 #define F_DIR_DEV_P(f) (&OPT_EXTRA(f, LEN64_BUMP(f) + ACL_BUMP(f) \
 688                                 + DEV_EXTRA_CNT - 1)->unum) /* receiver dirs */
 689
 690 /* This optional item might follow an F_HL_*() item.
 691  * (Note: a device doesn't need to check LEN64_BUMP(f).) */
 692 #define F_RDEV_P(f) (&OPT_EXTRA(f, HLINK_BUMP(f) + DEV_EXTRA_CNT - 1)->unum)
 693
 694 /* The sum is only present on regular files. */
 695 #define F_SUM(f) ((char*)OPT_EXTRA(f, LEN64_BUMP(f) + HLINK_BUMP(f) \
 696                                     + SUM_EXTRA_CNT - 1))
 697
 698 /* Some utility defines: */
 699 #define F_IS_ACTIVE(f) (f)->basename[0]
 700 #define F_IS_HLINKED(f) ((f)->flags & FLAG_HLINKED)
 701
 702 #define F_HLINK_NOT_FIRST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_FIRST)
 703 #define F_HLINK_NOT_LAST(f) BITS_SETnUNSET((f)->flags, FLAG_HLINKED, FLAG_HLINK_LAST)
 704
 705 /* These access the F_DIR_DEV_P() and F_RDEV_P() values: */
 706 #define DEV_MAJOR(a) (a)[0]
 707 #define DEV_MINOR(a) (a)[1]
 708
 709 /* These access the F_DIRS_NODE_P() values: */
 710 #define DIR_PARENT(a) (a)[0]
 711 #define DIR_FIRST_CHILD(a) (a)[1]
 712 #define DIR_NEXT_SIBLING(a) (a)[2]
 713
 714 /*
 715  * Start the flist array at FLIST_START entries and grow it
 716  * by doubling until FLIST_LINEAR then grow by FLIST_LINEAR
 717  */
 718 #define FLIST_START     (32 * 1024)
 719 #define FLIST_LINEAR    (FLIST_START * 512)
 720
 721 /*
 722  * Extent size for allocation pools: A minimum size of 128KB
 723  * is needed to mmap them so that freeing will release the
 724  * space to the OS.
 725  *
 726  * Larger sizes reduce leftover fragments and speed free calls
 727  * (when they happen). Smaller sizes increase the chance of
 728  * freed allocations freeing whole extents.
 729  */
 730 #define NORMAL_EXTENT   (256 * 1024)
 731 #define SMALL_EXTENT    (128 * 1024)
 732
 733 #define FLIST_TEMP      (1<<1)
 734
 735 struct file_list {
 736         struct file_list *next, *prev;
 737         struct file_struct **files, **sorted;
 738         alloc_pool_t file_pool;
 739         void *pool_boundary;
 740         int used, malloced;
 741         int low, high;  /* 0-relative index values excluding empties */
 742         int ndx_start;  /* the start offset for inc_recurse mode */
 743         int flist_num;  /* 1-relative file_list number or 0 */
 744         int parent_ndx; /* dir_flist index of parent directory */
 745         int in_progress, to_redo;
 746 };
 747
 748 #define SUMFLG_SAME_OFFSET      (1<<0)
 749
 750 struct sum_buf {
 751         OFF_T offset;           /**< offset in file of this chunk */
 752         int32 len;              /**< length of chunk of file */
 753         uint32 sum1;            /**< simple checksum */
 754         int32 chain;            /**< next hash-table collision */
 755         short flags;            /**< flag bits */
 756         char sum2[SUM_LENGTH];  /**< checksum  */
 757 };
 758
 759 struct sum_struct {
 760         OFF_T flength;          /**< total file length */
 761         struct sum_buf *sums;   /**< points to info for each chunk */
 762         int32 count;            /**< how many chunks */
 763         int32 blength;          /**< block_length */
 764         int32 remainder;        /**< flength % block_length */
 765         int s2length;           /**< sum2_length */
 766 };
 767
 768 struct map_struct {
 769         OFF_T file_size;        /* File size (from stat)                */
 770         OFF_T p_offset;         /* Window start                         */
 771         OFF_T p_fd_offset;      /* offset of cursor in fd ala lseek     */
 772         char *p;                /* Window pointer                       */
 773         int32 p_size;           /* Largest window size we allocated     */
 774         int32 p_len;            /* Latest (rounded) window size         */
 775         int32 def_window_size;  /* Default window size                  */
 776         int fd;                 /* File Descriptor                      */
 777         int status;             /* first errno from read errors         */
 778 };
 779
 780 #define MATCHFLG_WILD           (1<<0) /* pattern has '*', '[', and/or '?' */
 781 #define MATCHFLG_WILD2          (1<<1) /* pattern has '**' */
 782 #define MATCHFLG_WILD2_PREFIX   (1<<2) /* pattern starts with "**" */
 783 #define MATCHFLG_WILD3_SUFFIX   (1<<3) /* pattern ends with "***" */
 784 #define MATCHFLG_ABS_PATH       (1<<4) /* path-match on absolute path */
 785 #define MATCHFLG_INCLUDE        (1<<5) /* this is an include, not an exclude */
 786 #define MATCHFLG_DIRECTORY      (1<<6) /* this matches only directories */
 787 #define MATCHFLG_WORD_SPLIT     (1<<7) /* split rules on whitespace */
 788 #define MATCHFLG_NO_INHERIT     (1<<8) /* don't inherit these rules */
 789 #define MATCHFLG_NO_PREFIXES    (1<<9) /* parse no prefixes from patterns */
 790 #define MATCHFLG_MERGE_FILE     (1<<10)/* specifies a file to merge */
 791 #define MATCHFLG_PERDIR_MERGE   (1<<11)/* merge-file is searched per-dir */
 792 #define MATCHFLG_EXCLUDE_SELF   (1<<12)/* merge-file name should be excluded */
 793 #define MATCHFLG_FINISH_SETUP   (1<<13)/* per-dir merge file needs setup */
 794 #define MATCHFLG_NEGATE         (1<<14)/* rule matches when pattern does not */
 795 #define MATCHFLG_CVS_IGNORE     (1<<15)/* rule was -C or :C */
 796 #define MATCHFLG_SENDER_SIDE    (1<<16)/* rule applies to the sending side */
 797 #define MATCHFLG_RECEIVER_SIDE  (1<<17)/* rule applies to the receiving side */
 798 #define MATCHFLG_CLEAR_LIST     (1<<18)/* this item is the "!" token */
 799 #define MATCHFLG_PERISHABLE     (1<<19)/* perishable if parent dir goes away */
 800
 801 #define MATCHFLGS_FROM_CONTAINER (MATCHFLG_ABS_PATH | MATCHFLG_INCLUDE \
 802                                 | MATCHFLG_DIRECTORY | MATCHFLG_SENDER_SIDE \
 803                                 | MATCHFLG_NEGATE | MATCHFLG_RECEIVER_SIDE \
 804                                 | MATCHFLG_PERISHABLE)
 805
 806 struct filter_struct {
 807         struct filter_struct *next;
 808         char *pattern;
 809         uint32 match_flags;
 810         union {
 811                 int slash_cnt;
 812                 struct filter_list_struct *mergelist;
 813         } u;
 814 };
 815
 816 struct filter_list_struct {
 817         struct filter_struct *head;
 818         struct filter_struct *tail;
 819         char *debug_type;
 820 };
 821
 822 struct stats {
 823         int64 total_size;
 824         int64 total_transferred_size;
 825         int64 total_written;
 826         int64 total_read;
 827         int64 literal_data;
 828         int64 matched_data;
 829         int64 flist_buildtime;
 830         int64 flist_xfertime;
 831         int64 flist_size;
 832         int num_files;
 833         int num_transferred_files;
 834 };
 835
 836 struct chmod_mode_struct;
 837
 838 struct flist_ndx_item {
 839         struct flist_ndx_item *next;
 840         int ndx;
 841 };
 842
 843 typedef struct {
 844         struct flist_ndx_item *head, *tail;
 845 } flist_ndx_list;
 846
 847 #define EMPTY_ITEM_LIST {NULL, 0, 0}
 848
 849 typedef struct {
 850         void *items;
 851         size_t count;
 852         size_t malloced;
 853 } item_list;
 854
 855 #define EXPAND_ITEM_LIST(lp, type, incr) \
 856         (type*)expand_item_list(lp, sizeof (type), #type, incr)
 857
 858 #define EMPTY_XBUF {NULL, 0, 0, 0}
 859
 860 typedef struct {
 861         char *buf;
 862         size_t pos;  /* pos = read pos in the buf */
 863         size_t len;  /* len = chars following pos */
 864         size_t size; /* size = total space in buf */
 865 } xbuf;
 866
 867 #define INIT_XBUF(xb, str, ln, sz) (xb).buf = (str), (xb).len = (ln), (xb).size = (sz), (xb).pos = 0
 868 #define INIT_XBUF_STRLEN(xb, str) (xb).buf = (str), (xb).len = strlen((xb).buf), (xb).size = (-1), (xb).pos = 0
 869 /* This one is used to make an output xbuf based on a char[] buffer: */
 870 #define INIT_CONST_XBUF(xb, bf) (xb).buf = (bf), (xb).size = sizeof (bf), (xb).len = (xb).pos = 0
 871
 872 #define ICB_EXPAND_OUT (1<<0)
 873 #define ICB_INCLUDE_BAD (1<<1)
 874 #define ICB_INCLUDE_INCOMPLETE (1<<2)
 875
 876 #define RL_EOL_NULLS (1<<0)
 877 #define RL_DUMP_COMMENTS (1<<1)
 878 #define RL_CONVERT (1<<2)
 879
 880 typedef struct {
 881         char name_type;
 882         char fname[1]; /* has variable size */
 883 } relnamecache;
 884
 885 #include "byteorder.h"
 886 #include "lib/mdigest.h"
 887 #include "lib/wildmatch.h"
 888 #include "lib/permstring.h"
 889 #include "lib/addrinfo.h"
 890
 891 #ifndef __GNUC__
 892 #define __attribute__(x)
 893 #else
 894 # if __GNUC__ <= 2
 895 # define NORETURN
 896 # endif
 897 #endif
 898
 899 #define UNUSED(x) x __attribute__((__unused__))
 900 #ifndef NORETURN
 901 #define NORETURN __attribute__((__noreturn__))
 902 #endif
 903
 904 typedef struct {
 905     STRUCT_STAT st;
 906 #ifdef SUPPORT_ACLS
 907     struct rsync_acl *acc_acl; /* access ACL */
 908     struct rsync_acl *def_acl; /* default ACL */
 909 #endif
 910 #ifdef SUPPORT_XATTRS
 911     item_list *xattr;
 912 #endif
 913 } stat_x;
 914
 915 #define ACL_READY(sx) ((sx).acc_acl != NULL)
 916 #define XATTR_READY(sx) ((sx).xattr != NULL)
 917
 918 #include "proto.h"
 919
 920 #ifndef SUPPORT_XATTRS
 921 #define x_stat(fn,fst,xst) do_stat(fn,fst)
 922 #define x_lstat(fn,fst,xst) do_lstat(fn,fst)
 923 #define x_fstat(fd,fst,xst) do_fstat(fd,fst)
 924 #endif
 925
 926 /* We have replacement versions of these if they're missing. */
 927 #ifndef HAVE_ASPRINTF
 928 int asprintf(char **ptr, const char *format, ...);
 929 #endif
 930
 931 #ifndef HAVE_VASPRINTF
 932 int vasprintf(char **ptr, const char *format, va_list ap);
 933 #endif
 934
 935 #if !defined HAVE_VSNPRINTF || !defined HAVE_C99_VSNPRINTF
 936 #define vsnprintf rsync_vsnprintf
 937 int vsnprintf(char *str, size_t count, const char *fmt, va_list args);
 938 #endif
 939
 940 #if !defined HAVE_SNPRINTF || !defined HAVE_C99_VSNPRINTF
 941 #define snprintf rsync_snprintf
 942 int snprintf(char *str, size_t count, const char *fmt,...);
 943 #endif
 944
 945
 946 #ifndef HAVE_STRERROR
 947 extern char *sys_errlist[];
 948 #define strerror(i) sys_errlist[i]
 949 #endif
 950
 951 #ifndef HAVE_STRCHR
 952 # define strchr                 index
 953 # define strrchr                rindex
 954 #endif
 955
 956 #ifndef HAVE_ERRNO_DECL
 957 extern int errno;
 958 #endif
 959
 960 #ifdef HAVE_READLINK
 961 #define SUPPORT_LINKS 1
 962 #endif
 963 #ifdef HAVE_LINK
 964 #define SUPPORT_HARD_LINKS 1
 965 #endif
 966
 967 #ifdef HAVE_SIGACTION
 968 #define SIGACTION(n,h) sigact.sa_handler=(h), sigaction((n),&sigact,NULL)
 969 #define signal(n,h) we_need_to_call_SIGACTION_not_signal(n,h)
 970 #else
 971 #define SIGACTION(n,h) signal(n,h)
 972 #endif
 973
 974 #ifndef EWOULDBLOCK
 975 #define EWOULDBLOCK EAGAIN
 976 #endif
 977
 978 #ifndef STDIN_FILENO
 979 #define STDIN_FILENO 0
 980 #endif
 981
 982 #ifndef STDOUT_FILENO
 983 #define STDOUT_FILENO 1
 984 #endif
 985
 986 #ifndef STDERR_FILENO
 987 #define STDERR_FILENO 2
 988 #endif
 989
 990 #ifndef S_IRUSR
 991 #define S_IRUSR 0400
 992 #endif
 993
 994 #ifndef S_IWUSR
 995 #define S_IWUSR 0200
 996 #endif
 997
 998 #ifndef ACCESSPERMS
 999 #define ACCESSPERMS 0777
1000 #endif
1001
1002 #ifndef S_ISVTX
1003 #define S_ISVTX 0
1004 #endif
1005
1006 #define CHMOD_BITS (S_ISUID | S_ISGID | S_ISVTX | ACCESSPERMS)
1007
1008 #ifndef _S_IFMT
1009 #define _S_IFMT        0170000
1010 #endif
1011
1012 #ifndef _S_IFLNK
1013 #define _S_IFLNK  0120000
1014 #endif
1015
1016 #ifndef S_ISLNK
1017 #define S_ISLNK(mode) (((mode) & (_S_IFMT)) == (_S_IFLNK))
1018 #endif
1019
1020 #ifndef S_ISBLK
1021 #define S_ISBLK(mode) (((mode) & (_S_IFMT)) == (_S_IFBLK))
1022 #endif
1023
1024 #ifndef S_ISCHR
1025 #define S_ISCHR(mode) (((mode) & (_S_IFMT)) == (_S_IFCHR))
1026 #endif
1027
1028 #ifndef S_ISSOCK
1029 #ifdef _S_IFSOCK
1030 #define S_ISSOCK(mode) (((mode) & (_S_IFMT)) == (_S_IFSOCK))
1031 #else
1032 #define S_ISSOCK(mode) (0)
1033 #endif
1034 #endif
1035
1036 #ifndef S_ISFIFO
1037 #ifdef _S_IFIFO
1038 #define S_ISFIFO(mode) (((mode) & (_S_IFMT)) == (_S_IFIFO))
1039 #else
1040 #define S_ISFIFO(mode) (0)
1041 #endif
1042 #endif
1043
1044 #ifndef S_ISDIR
1045 #define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
1046 #endif
1047
1048 #ifndef S_ISREG
1049 #define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
1050 #endif
1051
1052 /* work out what fcntl flag to use for non-blocking */
1053 #ifdef O_NONBLOCK
1054 # define NONBLOCK_FLAG O_NONBLOCK
1055 #elif defined SYSV
1056 # define NONBLOCK_FLAG O_NDELAY
1057 #else
1058 # define NONBLOCK_FLAG FNDELAY
1059 #endif
1060
1061 #ifndef INADDR_LOOPBACK
1062 #define INADDR_LOOPBACK 0x7f000001
1063 #endif
1064
1065 #ifndef INADDR_NONE
1066 #define INADDR_NONE 0xffffffff
1067 #endif
1068
1069 #define IS_SPECIAL(mode) (S_ISSOCK(mode) || S_ISFIFO(mode))
1070 #define IS_DEVICE(mode) (S_ISCHR(mode) || S_ISBLK(mode))
1071
1072 /* Initial mask on permissions given to temporary files.  Mask off setuid
1073      bits and group access because of potential race-condition security
1074      holes, and mask other access because mode 707 is bizarre */
1075 #define INITACCESSPERMS 0700
1076
1077 /* handler for null strings in printf format */
1078 #define NS(s) ((s)?(s):"<NULL>")
1079
1080 /* Convenient wrappers for malloc and realloc.  Use them. */
1081 #define new(type) ((type*)malloc(sizeof (type)))
1082 #define new0(type) ((type*)calloc(1, sizeof (type)))
1083 #define new_array(type, num) ((type*)_new_array((num), sizeof (type), 0))
1084 #define new_array0(type, num) ((type*)_new_array((num), sizeof (type), 1))
1085 #define realloc_array(ptr, type, num) ((type*)_realloc_array((ptr), sizeof(type), (num)))
1086
1087 /* use magic gcc attributes to catch format errors */
1088  void rprintf(enum logcode , const char *, ...)
1089      __attribute__((format (printf, 2, 3)))
1090 ;
1091
1092 /* This is just like rprintf, but it also tries to print some
1093  * representation of the error code.  Normally errcode = errno. */
1094 void rsyserr(enum logcode, int, const char *, ...)
1095      __attribute__((format (printf, 3, 4)))
1096      ;
1097
1098 /* Make sure that the O_BINARY flag is defined. */
1099 #ifndef O_BINARY
1100 #define O_BINARY 0
1101 #endif
1102
1103 #ifndef HAVE_STRLCPY
1104 size_t strlcpy(char *d, const char *s, size_t bufsize);
1105 #endif
1106
1107 #ifndef HAVE_STRLCAT
1108 size_t strlcat(char *d, const char *s, size_t bufsize);
1109 #endif
1110
1111 #ifndef WEXITSTATUS
1112 #define WEXITSTATUS(stat)       ((int)(((stat)>>8)&0xFF))
1113 #endif
1114 #ifndef WIFEXITED
1115 #define WIFEXITED(stat)         ((int)((stat)&0xFF) == 0)
1116 #endif
1117
1118 #define exit_cleanup(code) _exit_cleanup(code, __FILE__, __LINE__)
1119
1120 #ifdef HAVE_GETEUID
1121 #define MY_UID() geteuid()
1122 #else
1123 #define MY_UID() getuid()
1124 #endif
1125
1126 #ifdef HAVE_GETEGID
1127 #define MY_GID() getegid()
1128 #else
1129 #define MY_GID() getgid()
1130 #endif
1131
1132 #ifdef FORCE_FD_ZERO_MEMSET
1133 #undef FD_ZERO
1134 #define FD_ZERO(fdsetp) memset(fdsetp, 0, sizeof (fd_set))
1135 #endif
1136
1137 extern int verbose;
1138
1139 #ifndef HAVE_INET_NTOP
1140 const char *inet_ntop(int af, const void *src, char *dst, size_t size);
1141 #endif
1142
1143 #ifndef HAVE_INET_PTON
1144 int inet_pton(int af, const char *src, void *dst);
1145 #endif
1146
1147 #ifdef MAINTAINER_MODE
1148 const char *get_panic_action(void);
1149 #endif