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_LINK 38#define HAVE_LINK 1 39#endif /* !defined HAVE_LINK */ 40 41#ifndef HAVE_SETTIMEOFDAY 42#define HAVE_SETTIMEOFDAY 3 43#endif /* !defined HAVE_SETTIMEOFDAY */ 44 45#ifndef HAVE_SYMLINK 46#define HAVE_SYMLINK 1 47#endif /* !defined HAVE_SYMLINK */ 48 49#ifndef HAVE_SYS_STAT_H 50#define HAVE_SYS_STAT_H 1 51#endif /* !defined HAVE_SYS_STAT_H */ 52 53#ifndef HAVE_SYS_WAIT_H 54#define HAVE_SYS_WAIT_H 1 55#endif /* !defined HAVE_SYS_WAIT_H */ 56 57#ifndef HAVE_UNISTD_H 58#define HAVE_UNISTD_H 1 59#endif /* !defined HAVE_UNISTD_H */ 60 61#ifndef HAVE_UTMPX_H 62#define HAVE_UTMPX_H 0 63#endif /* !defined HAVE_UTMPX_H */ 64 65#ifndef LOCALE_HOME 66#define LOCALE_HOME "/usr/lib/locale" 67#endif /* !defined LOCALE_HOME */ 68 69#if HAVE_INCOMPATIBLE_CTIME_R 70#define asctime_r _incompatible_asctime_r 71#define ctime_r _incompatible_ctime_r 72#endif /* HAVE_INCOMPATIBLE_CTIME_R */ 73 74/* 75** Nested includes 76*/ 77 78#include "sys/types.h" /* for time_t */ 79#include "stdio.h" 80#include "errno.h" 81#include "string.h" 82#include "limits.h" /* for CHAR_BIT et al. */ 83#include "time.h" 84#include "stdlib.h" 85 86#if HAVE_GETTEXT 87#include "libintl.h" 88#endif /* HAVE_GETTEXT */ 89 90#if HAVE_SYS_WAIT_H 91#include <sys/wait.h> /* for WIFEXITED and WEXITSTATUS */ 92#endif /* HAVE_SYS_WAIT_H */ 93 94#ifndef WIFEXITED 95#define WIFEXITED(status) (((status) & 0xff) == 0) 96#endif /* !defined WIFEXITED */ 97#ifndef WEXITSTATUS 98#define WEXITSTATUS(status) (((status) >> 8) & 0xff) 99#endif /* !defined WEXITSTATUS */ 100 101#if HAVE_UNISTD_H 102#include "unistd.h" /* for F_OK, R_OK, and other POSIX goodness */ 103#endif /* HAVE_UNISTD_H */ 104 105#ifndef F_OK 106#define F_OK 0 107#endif /* !defined F_OK */ 108#ifndef R_OK 109#define R_OK 4 110#endif /* !defined R_OK */ 111 112/* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */ 113#define is_digit(c) ((unsigned)(c) - '0' <= 9) 114 115/* 116** Define HAVE_STDINT_H's default value here, rather than at the 117** start, since __GLIBC__'s value depends on previously-included 118** files. 119** (glibc 2.1 and later have stdint.h, even with pre-C99 compilers.) 120*/ 121#ifndef HAVE_STDINT_H 122#define HAVE_STDINT_H \ 123 (199901 <= __STDC_VERSION__ || \ 124 2 < (__GLIBC__ + (0 < __GLIBC_MINOR__))) 125#endif /* !defined HAVE_STDINT_H */ 126 127#if HAVE_STDINT_H 128#include "stdint.h" 129#endif /* !HAVE_STDINT_H */ 130 131#ifndef HAVE_INTTYPES_H 132# define HAVE_INTTYPES_H HAVE_STDINT_H 133#endif 134#if HAVE_INTTYPES_H 135# include <inttypes.h> 136#endif 137 138#ifndef INT_FAST64_MAX 139/* Pre-C99 GCC compilers define __LONG_LONG_MAX__ instead of LLONG_MAX. */ 140#if defined LLONG_MAX || defined __LONG_LONG_MAX__ 141typedef long long int_fast64_t; 142# ifdef LLONG_MAX 143# define INT_FAST64_MIN LLONG_MIN 144# define INT_FAST64_MAX LLONG_MAX 145# else 146# define INT_FAST64_MIN __LONG_LONG_MIN__ 147# define INT_FAST64_MAX __LONG_LONG_MAX__ 148# endif 149# define SCNdFAST64 "lld" 150#else /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */ 151#if (LONG_MAX >> 31) < 0xffffffff 152Please use a compiler that supports a 64-bit integer type (or wider); 153you may need to compile with "-DHAVE_STDINT_H". 154#endif /* (LONG_MAX >> 31) < 0xffffffff */ 155typedef long int_fast64_t; 156# define INT_FAST64_MIN LONG_MIN 157# define INT_FAST64_MAX LONG_MAX 158# define SCNdFAST64 "ld" 159#endif /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */ 160#endif /* !defined INT_FAST64_MAX */ 161 162#ifndef INT_FAST32_MAX 163# if INT_MAX >> 31 == 0 164typedef long int_fast32_t; 165# else 166typedef int int_fast32_t; 167# endif 168#endif 169 170#ifndef INTMAX_MAX 171# if defined LLONG_MAX || defined __LONG_LONG_MAX__ 172typedef long long intmax_t; 173# define strtoimax strtoll 174# define PRIdMAX "lld" 175# ifdef LLONG_MAX 176# define INTMAX_MAX LLONG_MAX 177# define INTMAX_MIN LLONG_MIN 178# else 179# define INTMAX_MAX __LONG_LONG_MAX__ 180# define INTMAX_MIN __LONG_LONG_MIN__ 181# endif 182# else 183typedef long intmax_t; 184# define strtoimax strtol 185# define PRIdMAX "ld" 186# define INTMAX_MAX LONG_MAX 187# define INTMAX_MIN LONG_MIN 188# endif 189#endif 190 191#ifndef UINTMAX_MAX 192# if defined ULLONG_MAX || defined __LONG_LONG_MAX__ 193typedef unsigned long long uintmax_t; 194# define PRIuMAX "llu" 195# else 196typedef unsigned long uintmax_t; 197# define PRIuMAX "lu" 198# endif 199#endif 200 201#ifndef INT32_MAX 202#define INT32_MAX 0x7fffffff 203#endif /* !defined INT32_MAX */ 204#ifndef INT32_MIN 205#define INT32_MIN (-1 - INT32_MAX) 206#endif /* !defined INT32_MIN */ 207 208#ifndef SIZE_MAX 209#define SIZE_MAX ((size_t) -1) 210#endif 211 212#if 2 < __GNUC__ + (96 <= __GNUC_MINOR__) 213# define ATTRIBUTE_CONST __attribute__ ((const)) 214# define ATTRIBUTE_PURE __attribute__ ((__pure__)) 215# define ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec)) 216#else 217# define ATTRIBUTE_CONST /* empty */ 218# define ATTRIBUTE_PURE /* empty */ 219# define ATTRIBUTE_FORMAT(spec) /* empty */ 220#endif 221 222#if !defined _Noreturn && __STDC_VERSION__ < 201112 223# if 2 < __GNUC__ + (8 <= __GNUC_MINOR__) 224# define _Noreturn __attribute__ ((__noreturn__)) 225# else 226# define _Noreturn 227# endif 228#endif 229 230#if __STDC_VERSION__ < 199901 && !defined restrict 231# define restrict /* empty */ 232#endif 233 234/* 235** Workarounds for compilers/systems. 236*/ 237 238/* 239** Some time.h implementations don't declare asctime_r. 240** Others might define it as a macro. 241** Fix the former without affecting the latter. 242*/ 243 244#ifndef asctime_r 245extern char * asctime_r(struct tm const *, char *); 246#endif 247 248/* 249** Compile with -Dtime_tz=T to build the tz package with a private 250** time_t type equivalent to T rather than the system-supplied time_t. 251** This debugging feature can test unusual design decisions 252** (e.g., time_t wider than 'long', or unsigned time_t) even on 253** typical platforms. 254*/ 255#ifdef time_tz 256static time_t sys_time(time_t *x) { return time(x); } 257 258# undef ctime 259# define ctime tz_ctime 260# undef ctime_r 261# define ctime_r tz_ctime_r 262# undef difftime 263# define difftime tz_difftime 264# undef gmtime 265# define gmtime tz_gmtime 266# undef gmtime_r 267# define gmtime_r tz_gmtime_r 268# undef localtime 269# define localtime tz_localtime 270# undef localtime_r 271# define localtime_r tz_localtime_r 272# undef mktime 273# define mktime tz_mktime 274# undef time 275# define time tz_time 276# undef time_t 277# define time_t tz_time_t 278 279typedef time_tz time_t; 280 281char *ctime(time_t const *); 282char *ctime_r(time_t const *, char *); 283double difftime(time_t, time_t); 284struct tm *gmtime(time_t const *); 285struct tm *gmtime_r(time_t const *restrict, struct tm *restrict); 286struct tm *localtime(time_t const *); 287struct tm *localtime_r(time_t const *restrict, struct tm *restrict); 288time_t mktime(struct tm *); 289 290static time_t 291time(time_t *p) 292{ 293 time_t r = sys_time(0); 294 if (p) 295 *p = r; 296 return r; 297} 298#endif 299 300/* 301** Private function declarations. 302*/ 303 304char * icatalloc(char * old, const char * new); 305char * icpyalloc(const char * string); 306const char * scheck(const char * string, const char * format); 307 308/* 309** Finally, some convenience items. 310*/ 311 312#ifndef TRUE 313#define TRUE 1 314#endif /* !defined TRUE */ 315 316#ifndef FALSE 317#define FALSE 0 318#endif /* !defined FALSE */ 319 320#ifndef TYPE_BIT 321#define TYPE_BIT(type) (sizeof (type) * CHAR_BIT) 322#endif /* !defined TYPE_BIT */ 323 324#ifndef TYPE_SIGNED 325#define TYPE_SIGNED(type) (((type) -1) < 0) 326#endif /* !defined TYPE_SIGNED */ 327 328/* The minimum and maximum finite time values. */ 329static time_t const time_t_min = 330 (TYPE_SIGNED(time_t) 331 ? (time_t) -1 << (CHAR_BIT * sizeof (time_t) - 1) 332 : 0); 333static time_t const time_t_max = 334 (TYPE_SIGNED(time_t) 335 ? - (~ 0 < 0) - ((time_t) -1 << (CHAR_BIT * sizeof (time_t) - 1)) 336 : -1); 337 338#ifndef INT_STRLEN_MAXIMUM 339/* 340** 302 / 1000 is log10(2.0) rounded up. 341** Subtract one for the sign bit if the type is signed; 342** add one for integer division truncation; 343** add one more for a minus sign if the type is signed. 344*/ 345#define INT_STRLEN_MAXIMUM(type) \ 346 ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \ 347 1 + TYPE_SIGNED(type)) 348#endif /* !defined INT_STRLEN_MAXIMUM */ 349 350/* 351** INITIALIZE(x) 352*/ 353 354#ifndef GNUC_or_lint 355#ifdef lint 356#define GNUC_or_lint 357#endif /* defined lint */ 358#ifndef lint 359#ifdef __GNUC__ 360#define GNUC_or_lint 361#endif /* defined __GNUC__ */ 362#endif /* !defined lint */ 363#endif /* !defined GNUC_or_lint */ 364 365#ifndef INITIALIZE 366#ifdef GNUC_or_lint 367#define INITIALIZE(x) ((x) = 0) 368#endif /* defined GNUC_or_lint */ 369#ifndef GNUC_or_lint 370#define INITIALIZE(x) 371#endif /* !defined GNUC_or_lint */ 372#endif /* !defined INITIALIZE */ 373 374/* 375** For the benefit of GNU folk... 376** `_(MSGID)' uses the current locale's message library string for MSGID. 377** The default is to use gettext if available, and use MSGID otherwise. 378*/ 379 380#ifndef _ 381#if HAVE_GETTEXT 382#define _(msgid) gettext(msgid) 383#else /* !HAVE_GETTEXT */ 384#define _(msgid) msgid 385#endif /* !HAVE_GETTEXT */ 386#endif /* !defined _ */ 387 388#ifndef TZ_DOMAIN 389#define TZ_DOMAIN "tz" 390#endif /* !defined TZ_DOMAIN */ 391 392#if HAVE_INCOMPATIBLE_CTIME_R 393#undef asctime_r 394#undef ctime_r 395char *asctime_r(struct tm const *, char *); 396char *ctime_r(time_t const *, char *); 397#endif /* HAVE_INCOMPATIBLE_CTIME_R */ 398 399#ifndef YEARSPERREPEAT 400#define YEARSPERREPEAT 400 /* years before a Gregorian repeat */ 401#endif /* !defined YEARSPERREPEAT */ 402 403/* 404** The Gregorian year averages 365.2425 days, which is 31556952 seconds. 405*/ 406 407#ifndef AVGSECSPERYEAR 408#define AVGSECSPERYEAR 31556952L 409#endif /* !defined AVGSECSPERYEAR */ 410 411#ifndef SECSPERREPEAT 412#define SECSPERREPEAT ((int_fast64_t) YEARSPERREPEAT * (int_fast64_t) AVGSECSPERYEAR) 413#endif /* !defined SECSPERREPEAT */ 414 415#ifndef SECSPERREPEAT_BITS 416#define SECSPERREPEAT_BITS 34 /* ceil(log2(SECSPERREPEAT)) */ 417#endif /* !defined SECSPERREPEAT_BITS */ 418 419/* 420** UNIX was a registered trademark of The Open Group in 2003. 421*/ 422 423#endif /* !defined PRIVATE_H */ 424