1#ifndef PRIVATE_H 2 3#define PRIVATE_H 4 5/* 6** This file is in the public domain, so clarified as of 7** 1996-06-05 by Arthur David Olson. 8*/ 9 10/* 11** This header is for use ONLY with the time conversion code. 12** There is no guarantee that it will remain unchanged, 13** or that it will remain at all. 14** Do NOT copy it to any system include directory. 15** Thank you! 16*/ 17 18#define GRANDPARENTED "Local time zone must be set--see zic manual page" 19 20/* 21** Defaults for preprocessor symbols. 22** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'. 23*/ 24 25#ifndef HAVE_ADJTIME 26#define HAVE_ADJTIME 1 27#endif /* !defined HAVE_ADJTIME */ 28 29#ifndef HAVE_GETTEXT 30#define HAVE_GETTEXT 0 31#endif /* !defined HAVE_GETTEXT */ 32 33#ifndef HAVE_INCOMPATIBLE_CTIME_R 34#define HAVE_INCOMPATIBLE_CTIME_R 0 35#endif /* !defined INCOMPATIBLE_CTIME_R */ 36 37#ifndef HAVE_SETTIMEOFDAY 38#define HAVE_SETTIMEOFDAY 3 39#endif /* !defined HAVE_SETTIMEOFDAY */ 40 41#ifndef HAVE_SYMLINK 42#define HAVE_SYMLINK 1 43#endif /* !defined HAVE_SYMLINK */ 44 45#ifndef HAVE_SYS_STAT_H 46#define HAVE_SYS_STAT_H 1 47#endif /* !defined HAVE_SYS_STAT_H */ 48 49#ifndef HAVE_SYS_WAIT_H 50#define HAVE_SYS_WAIT_H 1 51#endif /* !defined HAVE_SYS_WAIT_H */ 52 53#ifndef HAVE_UNISTD_H 54#define HAVE_UNISTD_H 1 55#endif /* !defined HAVE_UNISTD_H */ 56 57#ifndef HAVE_UTMPX_H 58#define HAVE_UTMPX_H 0 59#endif /* !defined HAVE_UTMPX_H */ 60 61#ifndef LOCALE_HOME 62#define LOCALE_HOME "/usr/lib/locale" 63#endif /* !defined LOCALE_HOME */ 64 65#if HAVE_INCOMPATIBLE_CTIME_R 66#define asctime_r _incompatible_asctime_r 67#define ctime_r _incompatible_ctime_r 68#endif /* HAVE_INCOMPATIBLE_CTIME_R */ 69 70/* 71** Nested includes 72*/ 73 74#include "sys/types.h" /* for time_t */ 75#include "stdio.h" 76#include "errno.h" 77#include "string.h" 78#include "limits.h" /* for CHAR_BIT et al. */ 79#include "time.h" 80#include "stdlib.h" 81 82#if HAVE_GETTEXT 83#include "libintl.h" 84#endif /* HAVE_GETTEXT */ 85 86#if HAVE_SYS_WAIT_H 87#include <sys/wait.h> /* for WIFEXITED and WEXITSTATUS */ 88#endif /* HAVE_SYS_WAIT_H */ 89 90#ifndef WIFEXITED 91#define WIFEXITED(status) (((status) & 0xff) == 0) 92#endif /* !defined WIFEXITED */ 93#ifndef WEXITSTATUS 94#define WEXITSTATUS(status) (((status) >> 8) & 0xff) 95#endif /* !defined WEXITSTATUS */ 96 97#if HAVE_UNISTD_H 98#include "unistd.h" /* for F_OK, R_OK, and other POSIX goodness */ 99#endif /* HAVE_UNISTD_H */ 100 101#ifndef F_OK 102#define F_OK 0 103#endif /* !defined F_OK */ 104#ifndef R_OK 105#define R_OK 4 106#endif /* !defined R_OK */ 107 108/* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */ 109#define is_digit(c) ((unsigned)(c) - '0' <= 9) 110 111/* 112** Define HAVE_STDINT_H's default value here, rather than at the 113** start, since __GLIBC__'s value depends on previously-included 114** files. 115** (glibc 2.1 and later have stdint.h, even with pre-C99 compilers.) 116*/ 117#ifndef HAVE_STDINT_H 118#define HAVE_STDINT_H \ 119 (199901 <= __STDC_VERSION__ || \ 120 2 < (__GLIBC__ + (0 < __GLIBC_MINOR__))) 121#endif /* !defined HAVE_STDINT_H */ 122 123#if HAVE_STDINT_H 124#include "stdint.h" 125#endif /* !HAVE_STDINT_H */ 126 127#ifndef HAVE_INTTYPES_H 128# define HAVE_INTTYPES_H HAVE_STDINT_H 129#endif 130#if HAVE_INTTYPES_H 131# include <inttypes.h> 132#endif 133 134#ifndef INT_FAST64_MAX 135/* Pre-C99 GCC compilers define __LONG_LONG_MAX__ instead of LLONG_MAX. */ 136#if defined LLONG_MAX || defined __LONG_LONG_MAX__ 137typedef long long int_fast64_t; 138# ifdef LLONG_MAX 139# define INT_FAST64_MIN LLONG_MIN 140# define INT_FAST64_MAX LLONG_MAX 141# else 142# define INT_FAST64_MIN __LONG_LONG_MIN__ 143# define INT_FAST64_MAX __LONG_LONG_MAX__ 144# endif 145# define SCNdFAST64 "lld" 146#else /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */ 147#if (LONG_MAX >> 31) < 0xffffffff 148Please use a compiler that supports a 64-bit integer type (or wider); 149you may need to compile with "-DHAVE_STDINT_H". 150#endif /* (LONG_MAX >> 31) < 0xffffffff */ 151typedef long int_fast64_t; 152# define INT_FAST64_MIN LONG_MIN 153# define INT_FAST64_MAX LONG_MAX 154# define SCNdFAST64 "ld" 155#endif /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */ 156#endif /* !defined INT_FAST64_MAX */ 157 158#ifndef INT_FAST32_MAX 159# if INT_MAX >> 31 == 0 160typedef long int_fast32_t; 161# else 162typedef int int_fast32_t; 163# endif 164#endif 165 166#ifndef INTMAX_MAX 167# if defined LLONG_MAX || defined __LONG_LONG_MAX__ 168typedef long long intmax_t; 169# define PRIdMAX "lld" 170# else 171typedef long intmax_t; 172# define PRIdMAX "ld" 173# endif 174#endif 175 176#ifndef UINTMAX_MAX 177# if defined ULLONG_MAX || defined __LONG_LONG_MAX__ 178typedef unsigned long long uintmax_t; 179# define PRIuMAX "llu" 180# else 181typedef unsigned long uintmax_t; 182# define PRIuMAX "lu" 183# endif 184#endif 185 186#ifndef INT32_MAX 187#define INT32_MAX 0x7fffffff 188#endif /* !defined INT32_MAX */ 189#ifndef INT32_MIN 190#define INT32_MIN (-1 - INT32_MAX) 191#endif /* !defined INT32_MIN */ 192 193#if 2 < __GNUC__ + (96 <= __GNUC_MINOR__) 194# define ATTRIBUTE_CONST __attribute__ ((const)) 195# define ATTRIBUTE_PURE __attribute__ ((__pure__)) 196#else 197# define ATTRIBUTE_CONST /* empty */ 198# define ATTRIBUTE_PURE /* empty */ 199#endif 200 201#if !defined _Noreturn && __STDC_VERSION__ < 201112 202# if 2 < __GNUC__ + (8 <= __GNUC_MINOR__) 203# define _Noreturn __attribute__ ((__noreturn__)) 204# else 205# define _Noreturn 206# endif 207#endif 208 209#if __STDC_VERSION__ < 199901 && !defined restrict 210# define restrict /* empty */ 211#endif 212 213/* 214** Workarounds for compilers/systems. 215*/ 216 217/* 218** Some time.h implementations don't declare asctime_r. 219** Others might define it as a macro. 220** Fix the former without affecting the latter. 221*/ 222 223#ifndef asctime_r 224extern char * asctime_r(struct tm const *, char *); 225#endif 226 227/* 228** Compile with -Dtime_tz=T to build the tz package with a private 229** time_t type equivalent to T rather than the system-supplied time_t. 230** This debugging feature can test unusual design decisions 231** (e.g., time_t wider than 'long', or unsigned time_t) even on 232** typical platforms. 233*/ 234#ifdef time_tz 235static time_t sys_time(time_t *x) { return time(x); } 236 237# undef ctime 238# define ctime tz_ctime 239# undef ctime_r 240# define ctime_r tz_ctime_r 241# undef difftime 242# define difftime tz_difftime 243# undef gmtime 244# define gmtime tz_gmtime 245# undef gmtime_r 246# define gmtime_r tz_gmtime_r 247# undef localtime 248# define localtime tz_localtime 249# undef localtime_r 250# define localtime_r tz_localtime_r 251# undef mktime 252# define mktime tz_mktime 253# undef time 254# define time tz_time 255# undef time_t 256# define time_t tz_time_t 257 258typedef time_tz time_t; 259 260char *ctime(time_t const *); 261char *ctime_r(time_t const *, char *); 262double difftime(time_t, time_t); 263struct tm *gmtime(time_t const *); 264struct tm *gmtime_r(time_t const *restrict, struct tm *restrict); 265struct tm *localtime(time_t const *); 266struct tm *localtime_r(time_t const *restrict, struct tm *restrict); 267time_t mktime(struct tm *); 268 269static time_t 270time(time_t *p) 271{ 272 time_t r = sys_time(0); 273 if (p) 274 *p = r; 275 return r; 276} 277#endif 278 279/* 280** Private function declarations. 281*/ 282 283char * icatalloc(char * old, const char * new); 284char * icpyalloc(const char * string); 285const char * scheck(const char * string, const char * format); 286 287/* 288** Finally, some convenience items. 289*/ 290 291#ifndef TRUE 292#define TRUE 1 293#endif /* !defined TRUE */ 294 295#ifndef FALSE 296#define FALSE 0 297#endif /* !defined FALSE */ 298 299#ifndef TYPE_BIT 300#define TYPE_BIT(type) (sizeof (type) * CHAR_BIT) 301#endif /* !defined TYPE_BIT */ 302 303#ifndef TYPE_SIGNED 304#define TYPE_SIGNED(type) (((type) -1) < 0) 305#endif /* !defined TYPE_SIGNED */ 306 307/* The minimum and maximum finite time values. */ 308static time_t const time_t_min = 309 (TYPE_SIGNED(time_t) 310 ? (time_t) -1 << (CHAR_BIT * sizeof (time_t) - 1) 311 : 0); 312static time_t const time_t_max = 313 (TYPE_SIGNED(time_t) 314 ? - (~ 0 < 0) - ((time_t) -1 << (CHAR_BIT * sizeof (time_t) - 1)) 315 : -1); 316 317/* 318** Since the definition of TYPE_INTEGRAL contains floating point numbers, 319** it cannot be used in preprocessor directives. 320*/ 321 322#ifndef TYPE_INTEGRAL 323#define TYPE_INTEGRAL(type) (((type) 0.5) != 0.5) 324#endif /* !defined TYPE_INTEGRAL */ 325 326#ifndef INT_STRLEN_MAXIMUM 327/* 328** 302 / 1000 is log10(2.0) rounded up. 329** Subtract one for the sign bit if the type is signed; 330** add one for integer division truncation; 331** add one more for a minus sign if the type is signed. 332*/ 333#define INT_STRLEN_MAXIMUM(type) \ 334 ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \ 335 1 + TYPE_SIGNED(type)) 336#endif /* !defined INT_STRLEN_MAXIMUM */ 337 338/* 339** INITIALIZE(x) 340*/ 341 342#ifndef GNUC_or_lint 343#ifdef lint 344#define GNUC_or_lint 345#endif /* defined lint */ 346#ifndef lint 347#ifdef __GNUC__ 348#define GNUC_or_lint 349#endif /* defined __GNUC__ */ 350#endif /* !defined lint */ 351#endif /* !defined GNUC_or_lint */ 352 353#ifndef INITIALIZE 354#ifdef GNUC_or_lint 355#define INITIALIZE(x) ((x) = 0) 356#endif /* defined GNUC_or_lint */ 357#ifndef GNUC_or_lint 358#define INITIALIZE(x) 359#endif /* !defined GNUC_or_lint */ 360#endif /* !defined INITIALIZE */ 361 362/* 363** For the benefit of GNU folk... 364** `_(MSGID)' uses the current locale's message library string for MSGID. 365** The default is to use gettext if available, and use MSGID otherwise. 366*/ 367 368#ifndef _ 369#if HAVE_GETTEXT 370#define _(msgid) gettext(msgid) 371#else /* !HAVE_GETTEXT */ 372#define _(msgid) msgid 373#endif /* !HAVE_GETTEXT */ 374#endif /* !defined _ */ 375 376#ifndef TZ_DOMAIN 377#define TZ_DOMAIN "tz" 378#endif /* !defined TZ_DOMAIN */ 379 380#if HAVE_INCOMPATIBLE_CTIME_R 381#undef asctime_r 382#undef ctime_r 383char *asctime_r(struct tm const *, char *); 384char *ctime_r(time_t const *, char *); 385#endif /* HAVE_INCOMPATIBLE_CTIME_R */ 386 387#ifndef YEARSPERREPEAT 388#define YEARSPERREPEAT 400 /* years before a Gregorian repeat */ 389#endif /* !defined YEARSPERREPEAT */ 390 391/* 392** The Gregorian year averages 365.2425 days, which is 31556952 seconds. 393*/ 394 395#ifndef AVGSECSPERYEAR 396#define AVGSECSPERYEAR 31556952L 397#endif /* !defined AVGSECSPERYEAR */ 398 399#ifndef SECSPERREPEAT 400#define SECSPERREPEAT ((int_fast64_t) YEARSPERREPEAT * (int_fast64_t) AVGSECSPERYEAR) 401#endif /* !defined SECSPERREPEAT */ 402 403#ifndef SECSPERREPEAT_BITS 404#define SECSPERREPEAT_BITS 34 /* ceil(log2(SECSPERREPEAT)) */ 405#endif /* !defined SECSPERREPEAT_BITS */ 406 407/* 408** UNIX was a registered trademark of The Open Group in 2003. 409*/ 410 411#endif /* !defined PRIVATE_H */ 412