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 #ifndef HAVE_DECL_EWOULDBLOCK
  45 #define EWOULDBLOCK EAGAIN
  46 #endif
  47
  48 #if defined(_MSC_VER) || defined(__MINGW32__)
  49 #include "win32_replace.h"
  50 #endif
  51
  52
  53 #ifdef HAVE_INTTYPES_H
  54 #define __STDC_FORMAT_MACROS
  55 #include <inttypes.h>
  56 #elif HAVE_STDINT_H
  57 #include <stdint.h>
  58 /* force off HAVE_INTTYPES_H so that roken doesn't try to include both,
  59    which causes a warning storm on irix */
  60 #undef HAVE_INTTYPES_H
  61 #endif
  62
  63 #ifdef HAVE_MALLOC_H
  64 #include <malloc.h>
  65 #endif
  66
  67 #ifndef __PRI64_PREFIX
  68 # if __WORDSIZE == 64 && ! defined __APPLE__
  69 #  define __PRI64_PREFIX        "l"
  70 # else
  71 #  define __PRI64_PREFIX        "ll"
  72 # endif
  73 #endif
  74
  75 /* Decimal notation.  */
  76 #ifndef PRId8
  77 # define PRId8          "d"
  78 #endif
  79 #ifndef PRId16
  80 # define PRId16         "d"
  81 #endif
  82 #ifndef PRId32
  83 # define PRId32         "d"
  84 #endif
  85 #ifndef PRId64
  86 # define PRId64         __PRI64_PREFIX "d"
  87 #endif
  88
  89 #ifndef PRIi8
  90 # define PRIi8          "i"
  91 #endif
  92 #ifndef PRIi16
  93 # define PRIi16         "i"
  94 #endif
  95 #ifndef PRIi32
  96 # define PRIi32         "i"
  97 #endif
  98 #ifndef PRIi64
  99 # define PRIi64         __PRI64_PREFIX "i"
 100 #endif
 101
 102 #ifndef PRIu8
 103 # define PRIu8          "u"
 104 #endif
 105 #ifndef PRIu16
 106 # define PRIu16         "u"
 107 #endif
 108 #ifndef PRIu32
 109 # define PRIu32         "u"
 110 #endif
 111 #ifndef PRIu64
 112 # define PRIu64         __PRI64_PREFIX "u"
 113 #endif
 114
 115 #ifndef SCNd8
 116 # define SCNd8          "hhd"
 117 #endif
 118 #ifndef SCNd16
 119 # define SCNd16         "hd"
 120 #endif
 121 #ifndef SCNd32
 122 # define SCNd32         "d"
 123 #endif
 124 #ifndef SCNd64
 125 # define SCNd64         __PRI64_PREFIX "d"
 126 #endif
 127
 128 #ifndef SCNi8
 129 # define SCNi8          "hhi"
 130 #endif
 131 #ifndef SCNi16
 132 # define SCNi16         "hi"
 133 #endif
 134 #ifndef SCNi32
 135 # define SCNi32         "i"
 136 #endif
 137 #ifndef SCNi64
 138 # define SCNi64         __PRI64_PREFIX "i"
 139 #endif
 140
 141 #ifndef SCNu8
 142 # define SCNu8          "hhu"
 143 #endif
 144 #ifndef SCNu16
 145 # define SCNu16         "hu"
 146 #endif
 147 #ifndef SCNu32
 148 # define SCNu32         "u"
 149 #endif
 150 #ifndef SCNu64
 151 # define SCNu64         __PRI64_PREFIX "u"
 152 #endif
 153
 154 #ifdef HAVE_BSD_STRING_H
 155 #include <bsd/string.h>
 156 #endif
 157
 158 #ifdef HAVE_BSD_UNISTD_H
 159 #include <bsd/unistd.h>
 160 #endif
 161
 162 #ifdef HAVE_STRING_H
 163 #include <string.h>
 164 #endif
 165
 166 #ifdef HAVE_STRINGS_H
 167 #include <strings.h>
 168 #endif
 169
 170 #ifdef HAVE_SYS_TYPES_H
 171 #include <sys/types.h>
 172 #endif
 173
 174 #ifdef HAVE_SYS_SYSMACROS_H
 175 #include <sys/sysmacros.h>
 176 #endif
 177
 178 #ifdef HAVE_SETPROCTITLE_H
 179 #include <setproctitle.h>
 180 #endif
 181
 182 #if STDC_HEADERS
 183 #include <stdlib.h>
 184 #include <stddef.h>
 185 #endif
 186
 187 #ifdef HAVE_LINUX_TYPES_H
 188 /*
 189  * This is needed as some broken header files require this to be included early
 190  */
 191 #include <linux/types.h>
 192 #endif
 193
 194 #ifndef HAVE_STRERROR
 195 extern char *sys_errlist[];
 196 #define strerror(i) sys_errlist[i]
 197 #endif
 198
 199 #ifndef HAVE_ERRNO_DECL
 200 extern int errno;
 201 #endif
 202
 203 #ifndef HAVE_STRDUP
 204 #define strdup rep_strdup
 205 char *rep_strdup(const char *s);
 206 #endif
 207
 208 #ifndef HAVE_MEMMOVE
 209 #define memmove rep_memmove
 210 void *rep_memmove(void *dest,const void *src,int size);
 211 #endif
 212
 213 #ifndef HAVE_MEMMEM
 214 #define memmem rep_memmem
 215 void *rep_memmem(const void *haystack, size_t haystacklen,
 216                  const void *needle, size_t needlelen);
 217 #endif
 218
 219 #ifndef HAVE_MEMALIGN
 220 #define memalign rep_memalign
 221 void *rep_memalign(size_t boundary, size_t size);
 222 #endif
 223
 224 #ifndef HAVE_MKTIME
 225 #define mktime rep_mktime
 226 /* prototype is in "system/time.h" */
 227 #endif
 228
 229 #ifndef HAVE_TIMEGM
 230 #define timegm rep_timegm
 231 /* prototype is in "system/time.h" */
 232 #endif
 233
 234 #ifndef HAVE_UTIME
 235 #define utime rep_utime
 236 /* prototype is in "system/time.h" */
 237 #endif
 238
 239 #ifndef HAVE_UTIMES
 240 #define utimes rep_utimes
 241 /* prototype is in "system/time.h" */
 242 #endif
 243
 244 #ifndef HAVE_STRLCPY
 245 #define strlcpy rep_strlcpy
 246 size_t rep_strlcpy(char *d, const char *s, size_t bufsize);
 247 #endif
 248
 249 #ifndef HAVE_STRLCAT
 250 #define strlcat rep_strlcat
 251 size_t rep_strlcat(char *d, const char *s, size_t bufsize);
 252 #endif
 253
 254 #ifndef HAVE_CLOSEFROM
 255 #define closefrom rep_closefrom
 256 int rep_closefrom(int lower);
 257 #endif
 258
 259
 260 #if (defined(BROKEN_STRNDUP) || !defined(HAVE_STRNDUP))
 261 #undef HAVE_STRNDUP
 262 #define strndup rep_strndup
 263 char *rep_strndup(const char *s, size_t n);
 264 #endif
 265
 266 #if (defined(BROKEN_STRNLEN) || !defined(HAVE_STRNLEN))
 267 #undef HAVE_STRNLEN
 268 #define strnlen rep_strnlen
 269 size_t rep_strnlen(const char *s, size_t n);
 270 #endif
 271
 272 #if !HAVE_DECL_ENVIRON
 273 #ifdef __APPLE__
 274 #include <crt_externs.h>
 275 #define environ (*_NSGetEnviron())
 276 #else
 277 extern char **environ;
 278 #endif
 279 #endif
 280
 281 #ifndef HAVE_SETENV
 282 #define setenv rep_setenv
 283 int rep_setenv(const char *name, const char *value, int overwrite);
 284 #else
 285 #ifndef HAVE_SETENV_DECL
 286 int setenv(const char *name, const char *value, int overwrite);
 287 #endif
 288 #endif
 289
 290 #ifndef HAVE_UNSETENV
 291 #define unsetenv rep_unsetenv
 292 int rep_unsetenv(const char *name);
 293 #endif
 294
 295 #ifndef HAVE_SETEUID
 296 #define seteuid rep_seteuid
 297 int rep_seteuid(uid_t);
 298 #endif
 299
 300 #ifndef HAVE_SETEGID
 301 #define setegid rep_setegid
 302 int rep_setegid(gid_t);
 303 #endif
 304
 305 #if (defined(USE_SETRESUID) && !defined(HAVE_SETRESUID_DECL))
 306 /* stupid glibc */
 307 int setresuid(uid_t ruid, uid_t euid, uid_t suid);
 308 #endif
 309 #if (defined(USE_SETRESUID) && !defined(HAVE_SETRESGID_DECL))
 310 int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
 311 #endif
 312
 313 #ifndef HAVE_CHOWN
 314 #define chown rep_chown
 315 int rep_chown(const char *path, uid_t uid, gid_t gid);
 316 #endif
 317
 318 #ifndef HAVE_CHROOT
 319 #define chroot rep_chroot
 320 int rep_chroot(const char *dirname);
 321 #endif
 322
 323 #ifndef HAVE_LINK
 324 #define link rep_link
 325 int rep_link(const char *oldpath, const char *newpath);
 326 #endif
 327
 328 #ifndef HAVE_READLINK
 329 #define readlink rep_readlink
 330 ssize_t rep_readlink(const char *path, char *buf, size_t bufsize);
 331 #endif
 332
 333 #ifndef HAVE_SYMLINK
 334 #define symlink rep_symlink
 335 int rep_symlink(const char *oldpath, const char *newpath);
 336 #endif
 337
 338 #ifndef HAVE_REALPATH
 339 #define realpath rep_realpath
 340 char *rep_realpath(const char *path, char *resolved_path);
 341 #endif
 342
 343 #ifndef HAVE_LCHOWN
 344 #define lchown rep_lchown
 345 int rep_lchown(const char *fname,uid_t uid,gid_t gid);
 346 #endif
 347
 348 #ifdef HAVE_UNIX_H
 349 #include <unix.h>
 350 #endif
 351
 352 #ifndef HAVE_SETLINEBUF
 353 #define setlinebuf rep_setlinebuf
 354 void rep_setlinebuf(FILE *);
 355 #endif
 356
 357 #ifndef HAVE_STRCASESTR
 358 #define strcasestr rep_strcasestr
 359 char *rep_strcasestr(const char *haystack, const char *needle);
 360 #endif
 361
 362 #ifndef HAVE_STRSEP
 363 #define strsep rep_strsep
 364 char *rep_strsep(char **pps, const char *delim);
 365 #endif
 366
 367 #ifndef HAVE_STRTOK_R
 368 #define strtok_r rep_strtok_r
 369 char *rep_strtok_r(char *s, const char *delim, char **save_ptr);
 370 #endif
 371
 372
 373
 374 #ifndef HAVE_STRTOLL
 375 #define strtoll rep_strtoll
 376 long long int rep_strtoll(const char *str, char **endptr, int base);
 377 #else
 378 #ifdef HAVE_BSD_STRTOLL
 379 #define strtoll rep_strtoll
 380 long long int rep_strtoll(const char *str, char **endptr, int base);
 381 #endif
 382 #endif
 383
 384 #ifndef HAVE_STRTOULL
 385 #define strtoull rep_strtoull
 386 unsigned long long int rep_strtoull(const char *str, char **endptr, int base);
 387 #else
 388 #ifdef HAVE_BSD_STRTOLL /* yes, it's not HAVE_BSD_STRTOULL */
 389 #define strtoull rep_strtoull
 390 unsigned long long int rep_strtoull(const char *str, char **endptr, int base);
 391 #endif
 392 #endif
 393
 394 #ifndef HAVE_FTRUNCATE
 395 #define ftruncate rep_ftruncate
 396 int rep_ftruncate(int,off_t);
 397 #endif
 398
 399 #ifndef HAVE_INITGROUPS
 400 #define initgroups rep_initgroups
 401 int rep_initgroups(char *name, gid_t id);
 402 #endif
 403
 404 #if !defined(HAVE_BZERO) && defined(HAVE_MEMSET)
 405 #define bzero(a,b) memset((a),'\0',(b))
 406 #endif
 407
 408 #ifndef HAVE_DLERROR
 409 #define dlerror rep_dlerror
 410 char *rep_dlerror(void);
 411 #endif
 412
 413 #ifndef HAVE_DLOPEN
 414 #define dlopen rep_dlopen
 415 #ifdef DLOPEN_TAKES_UNSIGNED_FLAGS
 416 void *rep_dlopen(const char *name, unsigned int flags);
 417 #else
 418 void *rep_dlopen(const char *name, int flags);
 419 #endif
 420 #endif
 421
 422 #ifndef HAVE_DLSYM
 423 #define dlsym rep_dlsym
 424 void *rep_dlsym(void *handle, const char *symbol);
 425 #endif
 426
 427 #ifndef HAVE_DLCLOSE
 428 #define dlclose rep_dlclose
 429 int rep_dlclose(void *handle);
 430 #endif
 431
 432 #ifndef HAVE_SOCKETPAIR
 433 #define socketpair rep_socketpair
 434 /* prototype is in system/network.h */
 435 #endif
 436
 437 #ifndef PRINTF_ATTRIBUTE
 438 #ifdef HAVE___ATTRIBUTE__
 439 /** Use gcc attribute to check printf fns.  a1 is the 1-based index of
 440  * the parameter containing the format, and a2 the index of the first
 441  * argument. Note that some gcc 2.x versions don't handle this
 442  * properly **/
 443 #define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
 444 #else
 445 #define PRINTF_ATTRIBUTE(a1, a2)
 446 #endif
 447 #endif
 448
 449 #ifndef _DEPRECATED_
 450 #ifdef HAVE___ATTRIBUTE__
 451 #define _DEPRECATED_ __attribute__ ((deprecated))
 452 #else
 453 #define _DEPRECATED_
 454 #endif
 455 #endif
 456
 457 #if !defined(HAVE_VDPRINTF) || !defined(HAVE_C99_VSNPRINTF)
 458 #define vdprintf rep_vdprintf
 459 int rep_vdprintf(int fd, const char *format, va_list ap) PRINTF_ATTRIBUTE(2,0);
 460 #endif
 461
 462 #if !defined(HAVE_DPRINTF) || !defined(HAVE_C99_VSNPRINTF)
 463 #define dprintf rep_dprintf
 464 int rep_dprintf(int fd, const char *format, ...) PRINTF_ATTRIBUTE(2,3);
 465 #endif
 466
 467 #if !defined(HAVE_VASPRINTF) || !defined(HAVE_C99_VSNPRINTF)
 468 #define vasprintf rep_vasprintf
 469 int rep_vasprintf(char **ptr, const char *format, va_list ap) PRINTF_ATTRIBUTE(2,0);
 470 #endif
 471
 472 #if !defined(HAVE_SNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
 473 #define snprintf rep_snprintf
 474 int rep_snprintf(char *,size_t ,const char *, ...) PRINTF_ATTRIBUTE(3,4);
 475 #endif
 476
 477 #if !defined(HAVE_VSNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
 478 #define vsnprintf rep_vsnprintf
 479 int rep_vsnprintf(char *,size_t ,const char *, va_list ap) PRINTF_ATTRIBUTE(3,0);
 480 #endif
 481
 482 #if !defined(HAVE_ASPRINTF) || !defined(HAVE_C99_VSNPRINTF)
 483 #define asprintf rep_asprintf
 484 int rep_asprintf(char **,const char *, ...) PRINTF_ATTRIBUTE(2,3);
 485 #endif
 486
 487 #if !defined(HAVE_C99_VSNPRINTF)
 488 #ifdef REPLACE_BROKEN_PRINTF
 489 /*
 490  * We do not redefine printf by default
 491  * as it breaks the build if system headers
 492  * use __attribute__((format(printf, 3, 0)))
 493  * instead of __attribute__((format(__printf__, 3, 0)))
 494  */
 495 #define printf rep_printf
 496 #endif
 497 int rep_printf(const char *, ...) PRINTF_ATTRIBUTE(1,2);
 498 #endif
 499
 500 #if !defined(HAVE_C99_VSNPRINTF)
 501 #define fprintf rep_fprintf
 502 int rep_fprintf(FILE *stream, const char *, ...) PRINTF_ATTRIBUTE(2,3);
 503 #endif
 504
 505 #ifndef HAVE_VSYSLOG
 506 #ifdef HAVE_SYSLOG
 507 #define vsyslog rep_vsyslog
 508 void rep_vsyslog (int facility_priority, const char *format, va_list arglist) PRINTF_ATTRIBUTE(2,0);
 509 #endif
 510 #endif
 511
 512 /* we used to use these fns, but now we have good replacements
 513    for snprintf and vsnprintf */
 514 #define slprintf snprintf
 515
 516
 517 #ifndef HAVE_VA_COPY
 518 #undef va_copy
 519 #ifdef HAVE___VA_COPY
 520 #define va_copy(dest, src) __va_copy(dest, src)
 521 #else
 522 #define va_copy(dest, src) (dest) = (src)
 523 #endif
 524 #endif
 525
 526 #ifndef HAVE_VOLATILE
 527 #define volatile
 528 #endif
 529
 530 #ifndef HAVE_COMPARISON_FN_T
 531 typedef int (*comparison_fn_t)(const void *, const void *);
 532 #endif
 533
 534 #ifndef HAVE_WORKING_STRPTIME
 535 #define strptime rep_strptime
 536 struct tm;
 537 char *rep_strptime(const char *buf, const char *format, struct tm *tm);
 538 #endif
 539
 540 #ifndef HAVE_DUP2
 541 #define dup2 rep_dup2
 542 int rep_dup2(int oldfd, int newfd);
 543 #endif
 544
 545 /* Load header file for dynamic linking stuff */
 546 #ifdef HAVE_DLFCN_H
 547 #include <dlfcn.h>
 548 #endif
 549
 550 #ifndef RTLD_LAZY
 551 #define RTLD_LAZY 0
 552 #endif
 553 #ifndef RTLD_NOW
 554 #define RTLD_NOW 0
 555 #endif
 556 #ifndef RTLD_GLOBAL
 557 #define RTLD_GLOBAL 0
 558 #endif
 559
 560 #ifndef HAVE_SECURE_MKSTEMP
 561 #define mkstemp(path) rep_mkstemp(path)
 562 int rep_mkstemp(char *temp);
 563 #endif
 564
 565 #ifndef HAVE_MKDTEMP
 566 #define mkdtemp rep_mkdtemp
 567 char *rep_mkdtemp(char *template);
 568 #endif
 569
 570 #ifndef HAVE_PREAD
 571 #define pread rep_pread
 572 ssize_t rep_pread(int __fd, void *__buf, size_t __nbytes, off_t __offset);
 573 #define LIBREPLACE_PREAD_REPLACED 1
 574 #else
 575 #define LIBREPLACE_PREAD_NOT_REPLACED 1
 576 #endif
 577
 578 #ifndef HAVE_PWRITE
 579 #define pwrite rep_pwrite
 580 ssize_t rep_pwrite(int __fd, const void *__buf, size_t __nbytes, off_t __offset);
 581 #define LIBREPLACE_PWRITE_REPLACED 1
 582 #else
 583 #define LIBREPLACE_PWRITE_NOT_REPLACED 1
 584 #endif
 585
 586 #if !defined(HAVE_INET_NTOA) || defined(REPLACE_INET_NTOA)
 587 #define inet_ntoa rep_inet_ntoa
 588 /* prototype is in "system/network.h" */
 589 #endif
 590
 591 #ifndef HAVE_INET_PTON
 592 #define inet_pton rep_inet_pton
 593 /* prototype is in "system/network.h" */
 594 #endif
 595
 596 #ifndef HAVE_INET_NTOP
 597 #define inet_ntop rep_inet_ntop
 598 /* prototype is in "system/network.h" */
 599 #endif
 600
 601 #ifndef HAVE_INET_ATON
 602 #define inet_aton rep_inet_aton
 603 /* prototype is in "system/network.h" */
 604 #endif
 605
 606 #ifndef HAVE_CONNECT
 607 #define connect rep_connect
 608 /* prototype is in "system/network.h" */
 609 #endif
 610
 611 #ifndef HAVE_GETHOSTBYNAME
 612 #define gethostbyname rep_gethostbyname
 613 /* prototype is in "system/network.h" */
 614 #endif
 615
 616 #ifndef HAVE_GETIFADDRS
 617 #define getifaddrs rep_getifaddrs
 618 /* prototype is in "system/network.h" */
 619 #endif
 620
 621 #ifndef HAVE_FREEIFADDRS
 622 #define freeifaddrs rep_freeifaddrs
 623 /* prototype is in "system/network.h" */
 624 #endif
 625
 626 #ifndef HAVE_GET_CURRENT_DIR_NAME
 627 #define get_current_dir_name rep_get_current_dir_name
 628 char *rep_get_current_dir_name(void);
 629 #endif
 630
 631 #if (!defined(HAVE_STRERROR_R) || !defined(STRERROR_R_XSI_NOT_GNU))
 632 #define strerror_r rep_strerror_r
 633 int rep_strerror_r(int errnum, char *buf, size_t buflen);
 634 #endif
 635
 636 #if !defined(HAVE_CLOCK_GETTIME)
 637 #define clock_gettime rep_clock_gettime
 638 #endif
 639
 640 #ifdef HAVE_LIMITS_H
 641 #include <limits.h>
 642 #endif
 643
 644 #ifdef HAVE_SYS_PARAM_H
 645 #include <sys/param.h>
 646 #endif
 647
 648 /* The extra casts work around common compiler bugs.  */
 649 #define _TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
 650 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
 651    It is necessary at least when t == time_t.  */
 652 #define _TYPE_MINIMUM(t) ((t) (_TYPE_SIGNED (t) \
 653                               ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
 654 #define _TYPE_MAXIMUM(t) ((t) (~ (t) 0 - _TYPE_MINIMUM (t)))
 655
 656 #ifndef UINT16_MAX
 657 #define UINT16_MAX 65535
 658 #endif
 659
 660 #ifndef UINT32_MAX
 661 #define UINT32_MAX (4294967295U)
 662 #endif
 663
 664 #ifndef UINT64_MAX
 665 #define UINT64_MAX ((uint64_t)-1)
 666 #endif
 667
 668 #ifndef INT64_MAX
 669 #define INT64_MAX 9223372036854775807LL
 670 #endif
 671
 672 #ifndef CHAR_BIT
 673 #define CHAR_BIT 8
 674 #endif
 675
 676 #ifndef INT32_MAX
 677 #define INT32_MAX _TYPE_MAXIMUM(int32_t)
 678 #endif
 679
 680 #ifdef HAVE_STDBOOL_H
 681 #include <stdbool.h>
 682 #endif
 683
 684 #if !defined(HAVE_BOOL)
 685 #ifdef HAVE__Bool
 686 #define bool _Bool
 687 #else
 688 typedef int bool;
 689 #endif
 690 #endif
 691
 692 #if !defined(HAVE_INTPTR_T)
 693 typedef long long intptr_t ;
 694 #endif
 695
 696 #if !defined(HAVE_UINTPTR_T)
 697 typedef unsigned long long uintptr_t ;
 698 #endif
 699
 700 #if !defined(HAVE_PTRDIFF_T)
 701 typedef unsigned long long ptrdiff_t ;
 702 #endif
 703
 704 /*
 705  * to prevent <rpcsvc/yp_prot.h> from doing a redefine of 'bool'
 706  *
 707  * IRIX, HPUX, MacOS 10 and Solaris need BOOL_DEFINED
 708  * Tru64 needs _BOOL_EXISTS
 709  * AIX needs _BOOL,_TRUE,_FALSE
 710  */
 711 #ifndef BOOL_DEFINED
 712 #define BOOL_DEFINED
 713 #endif
 714 #ifndef _BOOL_EXISTS
 715 #define _BOOL_EXISTS
 716 #endif
 717 #ifndef _BOOL
 718 #define _BOOL
 719 #endif
 720
 721 #ifndef __bool_true_false_are_defined
 722 #define __bool_true_false_are_defined
 723 #endif
 724
 725 #ifndef true
 726 #define true (1)
 727 #endif
 728 #ifndef false
 729 #define false (0)
 730 #endif
 731
 732 #ifndef _TRUE
 733 #define _TRUE true
 734 #endif
 735 #ifndef _FALSE
 736 #define _FALSE false
 737 #endif
 738
 739 #ifndef HAVE_FUNCTION_MACRO
 740 #ifdef HAVE_func_MACRO
 741 #define __FUNCTION__ __func__
 742 #else
 743 #define __FUNCTION__ ("")
 744 #endif
 745 #endif
 746
 747
 748 #ifndef MIN
 749 #define MIN(a,b) ((a)<(b)?(a):(b))
 750 #endif
 751
 752 #ifndef MAX
 753 #define MAX(a,b) ((a)>(b)?(a):(b))
 754 #endif
 755
 756 #if !defined(HAVE_VOLATILE)
 757 #define volatile
 758 #endif
 759
 760 /**
 761   this is a warning hack. The idea is to use this everywhere that we
 762   get the "discarding const" warning from gcc. That doesn't actually
 763   fix the problem of course, but it means that when we do get to
 764   cleaning them up we can do it by searching the code for
 765   discard_const.
 766
 767   It also means that other error types aren't as swamped by the noise
 768   of hundreds of const warnings, so we are more likely to notice when
 769   we get new errors.
 770
 771   Please only add more uses of this macro when you find it
 772   _really_ hard to fix const warnings. Our aim is to eventually use
 773   this function in only a very few places.
 774
 775   Also, please call this via the discard_const_p() macro interface, as that
 776   makes the return type safe.
 777 */
 778 #define discard_const(ptr) ((void *)((uintptr_t)(ptr)))
 779
 780 /** Type-safe version of discard_const */
 781 #define discard_const_p(type, ptr) ((type *)discard_const(ptr))
 782
 783 #ifndef __STRING
 784 #define __STRING(x)    #x
 785 #endif
 786
 787 #ifndef __STRINGSTRING
 788 #define __STRINGSTRING(x) __STRING(x)
 789 #endif
 790
 791 #ifndef __LINESTR__
 792 #define __LINESTR__ __STRINGSTRING(__LINE__)
 793 #endif
 794
 795 #ifndef __location__
 796 #define __location__ __FILE__ ":" __LINESTR__
 797 #endif
 798
 799 /**
 800  * zero a structure
 801  */
 802 #define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x))
 803
 804 /**
 805  * zero a structure given a pointer to the structure
 806  */
 807 #define ZERO_STRUCTP(x) do { if ((x) != NULL) memset((char *)(x), 0, sizeof(*(x))); } while(0)
 808
 809 /**
 810  * zero a structure given a pointer to the structure - no zero check
 811  */
 812 #define ZERO_STRUCTPN(x) memset((char *)(x), 0, sizeof(*(x)))
 813
 814 /* zero an array - note that sizeof(array) must work - ie. it must not be a
 815    pointer */
 816 #define ZERO_ARRAY(x) memset((char *)(x), 0, sizeof(x))
 817
 818 /**
 819  * work out how many elements there are in a static array
 820  */
 821 #define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
 822
 823 /**
 824  * pointer difference macro
 825  */
 826 #define PTR_DIFF(p1,p2) ((ptrdiff_t)(((const char *)(p1)) - (const char *)(p2)))
 827
 828 #if MMAP_BLACKLIST
 829 #undef HAVE_MMAP
 830 #endif
 831
 832 #ifdef __COMPAR_FN_T
 833 #define QSORT_CAST (__compar_fn_t)
 834 #endif
 835
 836 #ifndef QSORT_CAST
 837 #define QSORT_CAST (int (*)(const void *, const void *))
 838 #endif
 839
 840 #ifndef PATH_MAX
 841 #define PATH_MAX 1024
 842 #endif
 843
 844 #ifndef MAX_DNS_NAME_LENGTH
 845 #define MAX_DNS_NAME_LENGTH 256 /* Actually 255 but +1 for terminating null. */
 846 #endif
 847
 848 #ifndef HAVE_CRYPT
 849 char *ufc_crypt(const char *key, const char *salt);
 850 #define crypt ufc_crypt
 851 #else
 852 #ifdef HAVE_CRYPT_H
 853 #include <crypt.h>
 854 #endif
 855 #endif
 856
 857 /* these macros gain us a few percent of speed on gcc */
 858 #if (__GNUC__ >= 3)
 859 /* the strange !! is to ensure that __builtin_expect() takes either 0 or 1
 860    as its first argument */
 861 #ifndef likely
 862 #define likely(x)   __builtin_expect(!!(x), 1)
 863 #endif
 864 #ifndef unlikely
 865 #define unlikely(x) __builtin_expect(!!(x), 0)
 866 #endif
 867 #else
 868 #ifndef likely
 869 #define likely(x) (x)
 870 #endif
 871 #ifndef unlikely
 872 #define unlikely(x) (x)
 873 #endif
 874 #endif
 875
 876 #ifndef HAVE_FDATASYNC
 877 #define fdatasync(fd) fsync(fd)
 878 #elif !defined(HAVE_DECL_FDATASYNC)
 879 int fdatasync(int );
 880 #endif
 881
 882 /* these are used to mark symbols as local to a shared lib, or
 883  * publicly available via the shared lib API */
 884 #ifndef _PUBLIC_
 885 #ifdef HAVE_VISIBILITY_ATTR
 886 #define _PUBLIC_ __attribute__((visibility("default")))
 887 #else
 888 #define _PUBLIC_
 889 #endif
 890 #endif
 891
 892 #ifndef _PRIVATE_
 893 #ifdef HAVE_VISIBILITY_ATTR
 894 #  define _PRIVATE_ __attribute__((visibility("hidden")))
 895 #else
 896 #  define _PRIVATE_
 897 #endif
 898 #endif
 899
 900 #ifndef HAVE_POLL
 901 #define poll rep_poll
 902 /* prototype is in "system/network.h" */
 903 #endif
 904
 905 #ifndef HAVE_GETPEEREID
 906 #define getpeereid rep_getpeereid
 907 int rep_getpeereid(int s, uid_t *uid, gid_t *gid);
 908 #endif
 909
 910 #ifndef HAVE_USLEEP
 911 #define usleep rep_usleep
 912 typedef long useconds_t;
 913 int usleep(useconds_t);
 914 #endif
 915
 916 #ifndef HAVE_SETPROCTITLE
 917 #define setproctitle rep_setproctitle
 918 void rep_setproctitle(const char *fmt, ...) PRINTF_ATTRIBUTE(1, 2);
 919 #endif
 920
 921 #ifndef HAVE_SETPROCTITLE_INIT
 922 #define setproctitle_init rep_setproctitle_init
 923 void rep_setproctitle_init(int argc, char *argv[], char *envp[]);
 924 #endif
 925 bool nss_wrapper_enabled(void);
 926 bool nss_wrapper_hosts_enabled(void);
 927 bool socket_wrapper_enabled(void);
 928 bool uid_wrapper_enabled(void);
 929
 930 /* Needed for Solaris atomic_add_XX functions. */
 931 #if defined(HAVE_SYS_ATOMIC_H)
 932 #include <sys/atomic.h>
 933 #endif
 934
 935 #endif /* _LIBREPLACE_REPLACE_H */