lib/replace/replace.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    macros to go along with the lib/replace/ portability layer code
   5
   6    Copyright (C) Andrew Tridgell 2005
   7    Copyright (C) Jelmer Vernooij 2006-2008
   8    Copyright (C) Jeremy Allison 2007.
   9
  10      ** NOTE! The following LGPL license applies to the replace
  11      ** library. This does NOT imply that all of Samba is released
  12      ** under the LGPL
  13
  14    This library is free software; you can redistribute it and/or
  15    modify it under the terms of the GNU Lesser General Public
  16    License as published by the Free Software Foundation; either
  17    version 3 of the License, or (at your option) any later version.
  18
  19    This library is distributed in the hope that it will be useful,
  20    but WITHOUT ANY WARRANTY; without even the implied warranty of
  21    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  22    Lesser General Public License for more details.
  23
  24    You should have received a copy of the GNU Lesser General Public
  25    License along with this library; if not, see <http://www.gnu.org/licenses/>.
  26 */
  27
  28 #ifndef _LIBREPLACE_REPLACE_H
  29 #define _LIBREPLACE_REPLACE_H
  30
  31 #ifndef NO_CONFIG_H
  32 #include "config.h"
  33 #endif
  34
  35 #ifdef HAVE_STANDARDS_H
  36 #include <standards.h>
  37 #endif
  38
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <stdarg.h>
  42 #include <errno.h>
  43
  44 #if defined(_MSC_VER) || defined(__MINGW32__)
  45 #include "win32_replace.h"
  46 #endif
  47
  48
  49 #ifdef HAVE_INTTYPES_H
  50 #define __STDC_FORMAT_MACROS
  51 #include <inttypes.h>
  52 #elif HAVE_STDINT_H
  53 #include <stdint.h>
  54 /* force off HAVE_INTTYPES_H so that roken doesn't try to include both,
  55    which causes a warning storm on irix */
  56 #undef HAVE_INTTYPES_H
  57 #endif
  58
  59 #ifdef HAVE_MALLOC_H
  60 #include <malloc.h>
  61 #endif
  62
  63 #ifndef __PRI64_PREFIX
  64 # if __WORDSIZE == 64 && ! defined __APPLE__
  65 #  define __PRI64_PREFIX        "l"
  66 # else
  67 #  define __PRI64_PREFIX        "ll"
  68 # endif
  69 #endif
  70
  71 /* Decimal notation.  */
  72 #ifndef PRId8
  73 # define PRId8          "d"
  74 #endif
  75 #ifndef PRId16
  76 # define PRId16         "d"
  77 #endif
  78 #ifndef PRId32
  79 # define PRId32         "d"
  80 #endif
  81 #ifndef PRId64
  82 # define PRId64         __PRI64_PREFIX "d"
  83 #endif
  84
  85 #ifndef PRIi8
  86 # define PRIi8          "i"
  87 #endif
  88 #ifndef PRIi16
  89 # define PRIi16         "i"
  90 #endif
  91 #ifndef PRIi32
  92 # define PRIi32         "i"
  93 #endif
  94 #ifndef PRIi64
  95 # define PRIi64         __PRI64_PREFIX "i"
  96 #endif
  97
  98 #ifndef PRIu8
  99 # define PRIu8          "u"
 100 #endif
 101 #ifndef PRIu16
 102 # define PRIu16         "u"
 103 #endif
 104 #ifndef PRIu32
 105 # define PRIu32         "u"
 106 #endif
 107 #ifndef PRIu64
 108 # define PRIu64         __PRI64_PREFIX "u"
 109 #endif
 110
 111 #ifndef SCNd8
 112 # define SCNd8          "hhd"
 113 #endif
 114 #ifndef SCNd16
 115 # define SCNd16         "hd"
 116 #endif
 117 #ifndef SCNd32
 118 # define SCNd32         "d"
 119 #endif
 120 #ifndef SCNd64
 121 # define SCNd64         __PRI64_PREFIX "d"
 122 #endif
 123
 124 #ifndef SCNi8
 125 # define SCNi8          "hhi"
 126 #endif
 127 #ifndef SCNi16
 128 # define SCNi16         "hi"
 129 #endif
 130 #ifndef SCNi32
 131 # define SCNi32         "i"
 132 #endif
 133 #ifndef SCNi64
 134 # define SCNi64         __PRI64_PREFIX "i"
 135 #endif
 136
 137 #ifndef SCNu8
 138 # define SCNu8          "hhu"
 139 #endif
 140 #ifndef SCNu16
 141 # define SCNu16         "hu"
 142 #endif
 143 #ifndef SCNu32
 144 # define SCNu32         "u"
 145 #endif
 146 #ifndef SCNu64
 147 # define SCNu64         __PRI64_PREFIX "u"
 148 #endif
 149
 150 #ifdef HAVE_BSD_STRING_H
 151 #include <bsd/string.h>
 152 #endif
 153
 154 #ifdef HAVE_BSD_UNISTD_H
 155 #include <bsd/unistd.h>
 156 #endif
 157
 158 #ifdef HAVE_STRING_H
 159 #include <string.h>
 160 #endif
 161
 162 #ifdef HAVE_STRINGS_H
 163 #include <strings.h>
 164 #endif
 165
 166 #ifdef HAVE_SYS_TYPES_H
 167 #include <sys/types.h>
 168 #endif
 169
 170 #ifdef HAVE_SETPROCTITLE_H
 171 #include <setproctitle.h>
 172 #endif
 173
 174 #if STDC_HEADERS
 175 #include <stdlib.h>
 176 #include <stddef.h>
 177 #endif
 178
 179 #ifdef HAVE_LINUX_TYPES_H
 180 /*
 181  * This is needed as some broken header files require this to be included early
 182  */
 183 #include <linux/types.h>
 184 #endif
 185
 186 #ifndef HAVE_STRERROR
 187 extern char *sys_errlist[];
 188 #define strerror(i) sys_errlist[i]
 189 #endif
 190
 191 #ifndef HAVE_ERRNO_DECL
 192 extern int errno;
 193 #endif
 194
 195 #ifndef HAVE_STRDUP
 196 #define strdup rep_strdup
 197 char *rep_strdup(const char *s);
 198 #endif
 199
 200 #ifndef HAVE_MEMMOVE
 201 #define memmove rep_memmove
 202 void *rep_memmove(void *dest,const void *src,int size);
 203 #endif
 204
 205 #ifndef HAVE_MEMMEM
 206 #define memmem rep_memmem
 207 void *rep_memmem(const void *haystack, size_t haystacklen,
 208                  const void *needle, size_t needlelen);
 209 #endif
 210
 211 #ifndef HAVE_MEMALIGN
 212 #define memalign rep_memalign
 213 void *rep_memalign(size_t boundary, size_t size);
 214 #endif
 215
 216 #ifndef HAVE_MKTIME
 217 #define mktime rep_mktime
 218 /* prototype is in "system/time.h" */
 219 #endif
 220
 221 #ifndef HAVE_TIMEGM
 222 #define timegm rep_timegm
 223 /* prototype is in "system/time.h" */
 224 #endif
 225
 226 #ifndef HAVE_UTIME
 227 #define utime rep_utime
 228 /* prototype is in "system/time.h" */
 229 #endif
 230
 231 #ifndef HAVE_UTIMES
 232 #define utimes rep_utimes
 233 /* prototype is in "system/time.h" */
 234 #endif
 235
 236 #ifndef HAVE_STRLCPY
 237 #define strlcpy rep_strlcpy
 238 size_t rep_strlcpy(char *d, const char *s, size_t bufsize);
 239 #endif
 240
 241 #ifndef HAVE_STRLCAT
 242 #define strlcat rep_strlcat
 243 size_t rep_strlcat(char *d, const char *s, size_t bufsize);
 244 #endif
 245
 246 #if (defined(BROKEN_STRNDUP) || !defined(HAVE_STRNDUP))
 247 #undef HAVE_STRNDUP
 248 #define strndup rep_strndup
 249 char *rep_strndup(const char *s, size_t n);
 250 #endif
 251
 252 #if (defined(BROKEN_STRNLEN) || !defined(HAVE_STRNLEN))
 253 #undef HAVE_STRNLEN
 254 #define strnlen rep_strnlen
 255 size_t rep_strnlen(const char *s, size_t n);
 256 #endif
 257
 258 #if !HAVE_DECL_ENVIRON
 259 #ifdef __APPLE__
 260 #include <crt_externs.h>
 261 #define environ (*_NSGetEnviron())
 262 #else
 263 extern char **environ;
 264 #endif
 265 #endif
 266
 267 #ifndef HAVE_SETENV
 268 #define setenv rep_setenv
 269 int rep_setenv(const char *name, const char *value, int overwrite);
 270 #else
 271 #ifndef HAVE_SETENV_DECL
 272 int setenv(const char *name, const char *value, int overwrite);
 273 #endif
 274 #endif
 275
 276 #ifndef HAVE_UNSETENV
 277 #define unsetenv rep_unsetenv
 278 int rep_unsetenv(const char *name);
 279 #endif
 280
 281 #ifndef HAVE_SETEUID
 282 #define seteuid rep_seteuid
 283 int rep_seteuid(uid_t);
 284 #endif
 285
 286 #ifndef HAVE_SETEGID
 287 #define setegid rep_setegid
 288 int rep_setegid(gid_t);
 289 #endif
 290
 291 #if (defined(USE_SETRESUID) && !defined(HAVE_SETRESUID_DECL))
 292 /* stupid glibc */
 293 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
 294 #endif
 295 #if (defined(USE_SETRESUID) && !defined(HAVE_SETRESGID_DECL))
 296 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
 297 #endif
 298
 299 #ifndef HAVE_CHOWN
 300 #define chown rep_chown
 301 int rep_chown(const char *path, uid_t uid, gid_t gid);
 302 #endif
 303
 304 #ifndef HAVE_CHROOT
 305 #define chroot rep_chroot
 306 int rep_chroot(const char *dirname);
 307 #endif
 308
 309 #ifndef HAVE_LINK
 310 #define link rep_link
 311 int rep_link(const char *oldpath, const char *newpath);
 312 #endif
 313
 314 #ifndef HAVE_READLINK
 315 #define readlink rep_readlink
 316 ssize_t rep_readlink(const char *path, char *buf, size_t bufsize);
 317 #endif
 318
 319 #ifndef HAVE_SYMLINK
 320 #define symlink rep_symlink
 321 int rep_symlink(const char *oldpath, const char *newpath);
 322 #endif
 323
 324 #ifndef HAVE_REALPATH
 325 #define realpath rep_realpath
 326 char *rep_realpath(const char *path, char *resolved_path);
 327 #endif
 328
 329 #ifndef HAVE_LCHOWN
 330 #define lchown rep_lchown
 331 int rep_lchown(const char *fname,uid_t uid,gid_t gid);
 332 #endif
 333
 334 #ifdef HAVE_UNIX_H
 335 #include <unix.h>
 336 #endif
 337
 338 #ifndef HAVE_SETLINEBUF
 339 #define setlinebuf rep_setlinebuf
 340 void rep_setlinebuf(FILE *);
 341 #endif
 342
 343 #ifndef HAVE_STRCASESTR
 344 #define strcasestr rep_strcasestr
 345 char *rep_strcasestr(const char *haystack, const char *needle);
 346 #endif
 347
 348 #ifndef HAVE_STRSEP
 349 #define strsep rep_strsep
 350 char *rep_strsep(char **pps, const char *delim);
 351 #endif
 352
 353 #ifndef HAVE_STRTOK_R
 354 #define strtok_r rep_strtok_r
 355 char *rep_strtok_r(char *s, const char *delim, char **save_ptr);
 356 #endif
 357
 358
 359
 360 #ifndef HAVE_STRTOLL
 361 #define strtoll rep_strtoll
 362 long long int rep_strtoll(const char *str, char **endptr, int base);
 363 #else
 364 #ifdef HAVE_BSD_STRTOLL
 365 #define strtoll rep_strtoll
 366 long long int rep_strtoll(const char *str, char **endptr, int base);
 367 #endif
 368 #endif
 369
 370 #ifndef HAVE_STRTOULL
 371 #define strtoull rep_strtoull
 372 unsigned long long int rep_strtoull(const char *str, char **endptr, int base);
 373 #else
 374 #ifdef HAVE_BSD_STRTOLL /* yes, it's not HAVE_BSD_STRTOULL */
 375 #define strtoull rep_strtoull
 376 unsigned long long int rep_strtoull(const char *str, char **endptr, int base);
 377 #endif
 378 #endif
 379
 380 #ifndef HAVE_FTRUNCATE
 381 #define ftruncate rep_ftruncate
 382 int rep_ftruncate(int,off_t);
 383 #endif
 384
 385 #ifndef HAVE_INITGROUPS
 386 #define initgroups rep_initgroups
 387 int rep_initgroups(char *name, gid_t id);
 388 #endif
 389
 390 #if !defined(HAVE_BZERO) && defined(HAVE_MEMSET)
 391 #define bzero(a,b) memset((a),'\0',(b))
 392 #endif
 393
 394 #ifndef HAVE_DLERROR
 395 #define dlerror rep_dlerror
 396 char *rep_dlerror(void);
 397 #endif
 398
 399 #ifndef HAVE_DLOPEN
 400 #define dlopen rep_dlopen
 401 #ifdef DLOPEN_TAKES_UNSIGNED_FLAGS
 402 void *rep_dlopen(const char *name, unsigned int flags);
 403 #else
 404 void *rep_dlopen(const char *name, int flags);
 405 #endif
 406 #endif
 407
 408 #ifndef HAVE_DLSYM
 409 #define dlsym rep_dlsym
 410 void *rep_dlsym(void *handle, const char *symbol);
 411 #endif
 412
 413 #ifndef HAVE_DLCLOSE
 414 #define dlclose rep_dlclose
 415 int rep_dlclose(void *handle);
 416 #endif
 417
 418 #ifndef HAVE_SOCKETPAIR
 419 #define socketpair rep_socketpair
 420 /* prototype is in system/network.h */
 421 #endif
 422
 423 #ifndef PRINTF_ATTRIBUTE
 424 #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
 425 /** Use gcc attribute to check printf fns.  a1 is the 1-based index of
 426  * the parameter containing the format, and a2 the index of the first
 427  * argument. Note that some gcc 2.x versions don't handle this
 428  * properly **/
 429 #define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
 430 #else
 431 #define PRINTF_ATTRIBUTE(a1, a2)
 432 #endif
 433 #endif
 434
 435 #ifndef _DEPRECATED_
 436 #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
 437 #define _DEPRECATED_ __attribute__ ((deprecated))
 438 #else
 439 #define _DEPRECATED_
 440 #endif
 441 #endif
 442
 443 #if !defined(HAVE_VDPRINTF) || !defined(HAVE_C99_VSNPRINTF)
 444 #define vdprintf rep_vdprintf
 445 int rep_vdprintf(int fd, const char *format, va_list ap) PRINTF_ATTRIBUTE(2,0);
 446 #endif
 447
 448 #if !defined(HAVE_DPRINTF) || !defined(HAVE_C99_VSNPRINTF)
 449 #define dprintf rep_dprintf
 450 int rep_dprintf(int fd, const char *format, ...) PRINTF_ATTRIBUTE(2,3);
 451 #endif
 452
 453 #if !defined(HAVE_VASPRINTF) || !defined(HAVE_C99_VSNPRINTF)
 454 #define vasprintf rep_vasprintf
 455 int rep_vasprintf(char **ptr, const char *format, va_list ap) PRINTF_ATTRIBUTE(2,0);
 456 #endif
 457
 458 #if !defined(HAVE_SNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
 459 #define snprintf rep_snprintf
 460 int rep_snprintf(char *,size_t ,const char *, ...) PRINTF_ATTRIBUTE(3,4);
 461 #endif
 462
 463 #if !defined(HAVE_VSNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
 464 #define vsnprintf rep_vsnprintf
 465 int rep_vsnprintf(char *,size_t ,const char *, va_list ap) PRINTF_ATTRIBUTE(3,0);
 466 #endif
 467
 468 #if !defined(HAVE_ASPRINTF) || !defined(HAVE_C99_VSNPRINTF)
 469 #define asprintf rep_asprintf
 470 int rep_asprintf(char **,const char *, ...) PRINTF_ATTRIBUTE(2,3);
 471 #endif
 472
 473 #if !defined(HAVE_C99_VSNPRINTF)
 474 #ifdef REPLACE_BROKEN_PRINTF
 475 /*
 476  * We do not redefine printf by default
 477  * as it breaks the build if system headers
 478  * use __attribute__((format(printf, 3, 0)))
 479  * instead of __attribute__((format(__printf__, 3, 0)))
 480  */
 481 #define printf rep_printf
 482 #endif
 483 int rep_printf(const char *, ...) PRINTF_ATTRIBUTE(1,2);
 484 #endif
 485
 486 #if !defined(HAVE_C99_VSNPRINTF)
 487 #define fprintf rep_fprintf
 488 int rep_fprintf(FILE *stream, const char *, ...) PRINTF_ATTRIBUTE(2,3);
 489 #endif
 490
 491 #ifndef HAVE_VSYSLOG
 492 #ifdef HAVE_SYSLOG
 493 #define vsyslog rep_vsyslog
 494 void rep_vsyslog (int facility_priority, const char *format, va_list arglist) PRINTF_ATTRIBUTE(2,0);
 495 #endif
 496 #endif
 497
 498 /* we used to use these fns, but now we have good replacements
 499    for snprintf and vsnprintf */
 500 #define slprintf snprintf
 501
 502
 503 #ifndef HAVE_VA_COPY
 504 #undef va_copy
 505 #ifdef HAVE___VA_COPY
 506 #define va_copy(dest, src) __va_copy(dest, src)
 507 #else
 508 #define va_copy(dest, src) (dest) = (src)
 509 #endif
 510 #endif
 511
 512 #ifndef HAVE_VOLATILE
 513 #define volatile
 514 #endif
 515
 516 #ifndef HAVE_COMPARISON_FN_T
 517 typedef int (*comparison_fn_t)(const void *, const void *);
 518 #endif
 519
 520 #ifndef HAVE_WORKING_STRPTIME
 521 #define strptime rep_strptime
 522 struct tm;
 523 char *rep_strptime(const char *buf, const char *format, struct tm *tm);
 524 #endif
 525
 526 #ifndef HAVE_DUP2
 527 #define dup2 rep_dup2
 528 int rep_dup2(int oldfd, int newfd);
 529 #endif
 530
 531 /* Load header file for dynamic linking stuff */
 532 #ifdef HAVE_DLFCN_H
 533 #include <dlfcn.h>
 534 #endif
 535
 536 #ifndef RTLD_LAZY
 537 #define RTLD_LAZY 0
 538 #endif
 539 #ifndef RTLD_NOW
 540 #define RTLD_NOW 0
 541 #endif
 542 #ifndef RTLD_GLOBAL
 543 #define RTLD_GLOBAL 0
 544 #endif
 545
 546 #ifndef HAVE_SECURE_MKSTEMP
 547 #define mkstemp(path) rep_mkstemp(path)
 548 int rep_mkstemp(char *temp);
 549 #endif
 550
 551 #ifndef HAVE_MKDTEMP
 552 #define mkdtemp rep_mkdtemp
 553 char *rep_mkdtemp(char *template);
 554 #endif
 555
 556 #ifndef HAVE_PREAD
 557 #define pread rep_pread
 558 ssize_t rep_pread(int __fd, void *__buf, size_t __nbytes, off_t __offset);
 559 #define LIBREPLACE_PREAD_REPLACED 1
 560 #else
 561 #define LIBREPLACE_PREAD_NOT_REPLACED 1
 562 #endif
 563
 564 #ifndef HAVE_PWRITE
 565 #define pwrite rep_pwrite
 566 ssize_t rep_pwrite(int __fd, const void *__buf, size_t __nbytes, off_t __offset);
 567 #define LIBREPLACE_PWRITE_REPLACED 1
 568 #else
 569 #define LIBREPLACE_PWRITE_NOT_REPLACED 1
 570 #endif
 571
 572 #if !defined(HAVE_INET_NTOA) || defined(REPLACE_INET_NTOA)
 573 #define inet_ntoa rep_inet_ntoa
 574 /* prototype is in "system/network.h" */
 575 #endif
 576
 577 #ifndef HAVE_INET_PTON
 578 #define inet_pton rep_inet_pton
 579 /* prototype is in "system/network.h" */
 580 #endif
 581
 582 #ifndef HAVE_INET_NTOP
 583 #define inet_ntop rep_inet_ntop
 584 /* prototype is in "system/network.h" */
 585 #endif
 586
 587 #ifndef HAVE_INET_ATON
 588 #define inet_aton rep_inet_aton
 589 /* prototype is in "system/network.h" */
 590 #endif
 591
 592 #ifndef HAVE_CONNECT
 593 #define connect rep_connect
 594 /* prototype is in "system/network.h" */
 595 #endif
 596
 597 #ifndef HAVE_GETHOSTBYNAME
 598 #define gethostbyname rep_gethostbyname
 599 /* prototype is in "system/network.h" */
 600 #endif
 601
 602 #ifndef HAVE_GETIFADDRS
 603 #define getifaddrs rep_getifaddrs
 604 /* prototype is in "system/network.h" */
 605 #endif
 606
 607 #ifndef HAVE_FREEIFADDRS
 608 #define freeifaddrs rep_freeifaddrs
 609 /* prototype is in "system/network.h" */
 610 #endif
 611
 612 #ifndef HAVE_GET_CURRENT_DIR_NAME
 613 #define get_current_dir_name rep_get_current_dir_name
 614 char *rep_get_current_dir_name(void);
 615 #endif
 616
 617 #ifndef HAVE_STRERROR_R
 618 #define strerror_r rep_strerror_r
 619 int rep_strerror_r(int errnum, char *buf, size_t buflen);
 620 #endif
 621
 622 #if !defined(HAVE_CLOCK_GETTIME)
 623 #define clock_gettime rep_clock_gettime
 624 #endif
 625
 626 #ifdef HAVE_LIMITS_H
 627 #include <limits.h>
 628 #endif
 629
 630 #ifdef HAVE_SYS_PARAM_H
 631 #include <sys/param.h>
 632 #endif
 633
 634 /* The extra casts work around common compiler bugs.  */
 635 #define _TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
 636 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
 637    It is necessary at least when t == time_t.  */
 638 #define _TYPE_MINIMUM(t) ((t) (_TYPE_SIGNED (t) \
 639                               ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
 640 #define _TYPE_MAXIMUM(t) ((t) (~ (t) 0 - _TYPE_MINIMUM (t)))
 641
 642 #ifndef UINT16_MAX
 643 #define UINT16_MAX 65535
 644 #endif
 645
 646 #ifndef UINT32_MAX
 647 #define UINT32_MAX (4294967295U)
 648 #endif
 649
 650 #ifndef UINT64_MAX
 651 #define UINT64_MAX ((uint64_t)-1)
 652 #endif
 653
 654 #ifndef INT64_MAX
 655 #define INT64_MAX 9223372036854775807LL
 656 #endif
 657
 658 #ifndef CHAR_BIT
 659 #define CHAR_BIT 8
 660 #endif
 661
 662 #ifndef INT32_MAX
 663 #define INT32_MAX _TYPE_MAXIMUM(int32_t)
 664 #endif
 665
 666 #ifdef HAVE_STDBOOL_H
 667 #include <stdbool.h>
 668 #endif
 669
 670 #if !defined(HAVE_BOOL)
 671 #ifdef HAVE__Bool
 672 #define bool _Bool
 673 #else
 674 typedef int bool;
 675 #endif
 676 #endif
 677
 678 #if !defined(HAVE_INTPTR_T)
 679 typedef long long intptr_t ;
 680 #endif
 681
 682 #if !defined(HAVE_UINTPTR_T)
 683 typedef unsigned long long uintptr_t ;
 684 #endif
 685
 686 #if !defined(HAVE_PTRDIFF_T)
 687 typedef unsigned long long ptrdiff_t ;
 688 #endif
 689
 690 /*
 691  * to prevent <rpcsvc/yp_prot.h> from doing a redefine of 'bool'
 692  *
 693  * IRIX, HPUX, MacOS 10 and Solaris need BOOL_DEFINED
 694  * Tru64 needs _BOOL_EXISTS
 695  * AIX needs _BOOL,_TRUE,_FALSE
 696  */
 697 #ifndef BOOL_DEFINED
 698 #define BOOL_DEFINED
 699 #endif
 700 #ifndef _BOOL_EXISTS
 701 #define _BOOL_EXISTS
 702 #endif
 703 #ifndef _BOOL
 704 #define _BOOL
 705 #endif
 706
 707 #ifndef __bool_true_false_are_defined
 708 #define __bool_true_false_are_defined
 709 #endif
 710
 711 #ifndef true
 712 #define true (1)
 713 #endif
 714 #ifndef false
 715 #define false (0)
 716 #endif
 717
 718 #ifndef _TRUE
 719 #define _TRUE true
 720 #endif
 721 #ifndef _FALSE
 722 #define _FALSE false
 723 #endif
 724
 725 #ifndef HAVE_FUNCTION_MACRO
 726 #ifdef HAVE_func_MACRO
 727 #define __FUNCTION__ __func__
 728 #else
 729 #define __FUNCTION__ ("")
 730 #endif
 731 #endif
 732
 733
 734 #ifndef MIN
 735 #define MIN(a,b) ((a)<(b)?(a):(b))
 736 #endif
 737
 738 #ifndef MAX
 739 #define MAX(a,b) ((a)>(b)?(a):(b))
 740 #endif
 741
 742 #if !defined(HAVE_VOLATILE)
 743 #define volatile
 744 #endif
 745
 746 /**
 747   this is a warning hack. The idea is to use this everywhere that we
 748   get the "discarding const" warning from gcc. That doesn't actually
 749   fix the problem of course, but it means that when we do get to
 750   cleaning them up we can do it by searching the code for
 751   discard_const.
 752
 753   It also means that other error types aren't as swamped by the noise
 754   of hundreds of const warnings, so we are more likely to notice when
 755   we get new errors.
 756
 757   Please only add more uses of this macro when you find it
 758   _really_ hard to fix const warnings. Our aim is to eventually use
 759   this function in only a very few places.
 760
 761   Also, please call this via the discard_const_p() macro interface, as that
 762   makes the return type safe.
 763 */
 764 #define discard_const(ptr) ((void *)((uintptr_t)(ptr)))
 765
 766 /** Type-safe version of discard_const */
 767 #define discard_const_p(type, ptr) ((type *)discard_const(ptr))
 768
 769 #ifndef __STRING
 770 #define __STRING(x)    #x
 771 #endif
 772
 773 #ifndef __STRINGSTRING
 774 #define __STRINGSTRING(x) __STRING(x)
 775 #endif
 776
 777 #ifndef __LINESTR__
 778 #define __LINESTR__ __STRINGSTRING(__LINE__)
 779 #endif
 780
 781 #ifndef __location__
 782 #define __location__ __FILE__ ":" __LINESTR__
 783 #endif
 784
 785 /**
 786  * zero a structure
 787  */
 788 #define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x))
 789
 790 /**
 791  * zero a structure given a pointer to the structure
 792  */
 793 #define ZERO_STRUCTP(x) do { if ((x) != NULL) memset((char *)(x), 0, sizeof(*(x))); } while(0)
 794
 795 /**
 796  * zero a structure given a pointer to the structure - no zero check
 797  */
 798 #define ZERO_STRUCTPN(x) memset((char *)(x), 0, sizeof(*(x)))
 799
 800 /* zero an array - note that sizeof(array) must work - ie. it must not be a
 801    pointer */
 802 #define ZERO_ARRAY(x) memset((char *)(x), 0, sizeof(x))
 803
 804 /**
 805  * work out how many elements there are in a static array
 806  */
 807 #define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
 808
 809 /**
 810  * pointer difference macro
 811  */
 812 #define PTR_DIFF(p1,p2) ((ptrdiff_t)(((const char *)(p1)) - (const char *)(p2)))
 813
 814 #if MMAP_BLACKLIST
 815 #undef HAVE_MMAP
 816 #endif
 817
 818 #ifdef __COMPAR_FN_T
 819 #define QSORT_CAST (__compar_fn_t)
 820 #endif
 821
 822 #ifndef QSORT_CAST
 823 #define QSORT_CAST (int (*)(const void *, const void *))
 824 #endif
 825
 826 #ifndef PATH_MAX
 827 #define PATH_MAX 1024
 828 #endif
 829
 830 #ifndef MAX_DNS_NAME_LENGTH
 831 #define MAX_DNS_NAME_LENGTH 256 /* Actually 255 but +1 for terminating null. */
 832 #endif
 833
 834 #ifndef HAVE_CRYPT
 835 char *ufc_crypt(const char *key, const char *salt);
 836 #define crypt ufc_crypt
 837 #else
 838 #ifdef HAVE_CRYPT_H
 839 #include <crypt.h>
 840 #endif
 841 #endif
 842
 843 /* these macros gain us a few percent of speed on gcc */
 844 #if (__GNUC__ >= 3)
 845 /* the strange !! is to ensure that __builtin_expect() takes either 0 or 1
 846    as its first argument */
 847 #ifndef likely
 848 #define likely(x)   __builtin_expect(!!(x), 1)
 849 #endif
 850 #ifndef unlikely
 851 #define unlikely(x) __builtin_expect(!!(x), 0)
 852 #endif
 853 #else
 854 #ifndef likely
 855 #define likely(x) (x)
 856 #endif
 857 #ifndef unlikely
 858 #define unlikely(x) (x)
 859 #endif
 860 #endif
 861
 862 #ifndef HAVE_FDATASYNC
 863 #define fdatasync(fd) fsync(fd)
 864 #elif !defined(HAVE_DECL_FDATASYNC)
 865 int fdatasync(int );
 866 #endif
 867
 868 /* these are used to mark symbols as local to a shared lib, or
 869  * publicly available via the shared lib API */
 870 #ifndef _PUBLIC_
 871 #ifdef HAVE_VISIBILITY_ATTR
 872 #define _PUBLIC_ __attribute__((visibility("default")))
 873 #else
 874 #define _PUBLIC_
 875 #endif
 876 #endif
 877
 878 #ifndef _PRIVATE_
 879 #ifdef HAVE_VISIBILITY_ATTR
 880 #  define _PRIVATE_ __attribute__((visibility("hidden")))
 881 #else
 882 #  define _PRIVATE_
 883 #endif
 884 #endif
 885
 886 #ifndef HAVE_POLL
 887 #define poll rep_poll
 888 /* prototype is in "system/network.h" */
 889 #endif
 890
 891 #ifndef HAVE_GETPEEREID
 892 #define getpeereid rep_getpeereid
 893 int rep_getpeereid(int s, uid_t *uid, gid_t *gid);
 894 #endif
 895
 896 #ifndef HAVE_USLEEP
 897 #define usleep rep_usleep
 898 typedef long useconds_t;
 899 int usleep(useconds_t);
 900 #endif
 901
 902 #ifndef HAVE_SETPROCTITLE
 903 #define setproctitle rep_setproctitle
 904 void rep_setproctitle(const char *fmt, ...) PRINTF_ATTRIBUTE(1, 2);
 905 #endif
 906
 907 /* Needed for Solaris atomic_add_XX functions. */
 908 #if defined(HAVE_SYS_ATOMIC_H)
 909 #include <sys/atomic.h>
 910 #endif
 911
 912 #endif /* _LIBREPLACE_REPLACE_H */