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