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Diffstat (limited to 'REORG.TODO/timezone/private.h')
| -rw-r--r-- | REORG.TODO/timezone/private.h | 578 |
1 files changed, 578 insertions, 0 deletions
diff --git a/REORG.TODO/timezone/private.h b/REORG.TODO/timezone/private.h new file mode 100644 index 0000000000..1c176e62bc --- /dev/null +++ b/REORG.TODO/timezone/private.h @@ -0,0 +1,578 @@ +#ifndef PRIVATE_H + +#define PRIVATE_H + +/* +** This file is in the public domain, so clarified as of +** 1996-06-05 by Arthur David Olson. +*/ + +/* +** This header is for use ONLY with the time conversion code. +** There is no guarantee that it will remain unchanged, +** or that it will remain at all. +** Do NOT copy it to any system include directory. +** Thank you! +*/ + +#define GRANDPARENTED "Local time zone must be set--see zic manual page" + +/* +** Defaults for preprocessor symbols. +** You can override these in your C compiler options, e.g. '-DHAVE_GETTEXT=1'. +*/ + +#ifndef HAVE_GETTEXT +#define HAVE_GETTEXT 0 +#endif /* !defined HAVE_GETTEXT */ + +#ifndef HAVE_INCOMPATIBLE_CTIME_R +#define HAVE_INCOMPATIBLE_CTIME_R 0 +#endif /* !defined INCOMPATIBLE_CTIME_R */ + +#ifndef HAVE_LINK +#define HAVE_LINK 1 +#endif /* !defined HAVE_LINK */ + +#ifndef HAVE_STRDUP +#define HAVE_STRDUP 1 +#endif + +#ifndef HAVE_SYMLINK +#define HAVE_SYMLINK 1 +#endif /* !defined HAVE_SYMLINK */ + +#ifndef HAVE_SYS_STAT_H +#define HAVE_SYS_STAT_H 1 +#endif /* !defined HAVE_SYS_STAT_H */ + +#ifndef HAVE_SYS_WAIT_H +#define HAVE_SYS_WAIT_H 1 +#endif /* !defined HAVE_SYS_WAIT_H */ + +#ifndef HAVE_UNISTD_H +#define HAVE_UNISTD_H 1 +#endif /* !defined HAVE_UNISTD_H */ + +#ifndef HAVE_UTMPX_H +#define HAVE_UTMPX_H 1 +#endif /* !defined HAVE_UTMPX_H */ + +#ifndef NETBSD_INSPIRED +# define NETBSD_INSPIRED 1 +#endif + +#if HAVE_INCOMPATIBLE_CTIME_R +#define asctime_r _incompatible_asctime_r +#define ctime_r _incompatible_ctime_r +#endif /* HAVE_INCOMPATIBLE_CTIME_R */ + +/* Enable tm_gmtoff and tm_zone on GNUish systems. */ +#define _GNU_SOURCE 1 +/* Fix asctime_r on Solaris 10. */ +#define _POSIX_PTHREAD_SEMANTICS 1 +/* Enable strtoimax on Solaris 10. */ +#define __EXTENSIONS__ 1 + +/* +** Nested includes +*/ + +/* Avoid clashes with NetBSD by renaming NetBSD's declarations. */ +#define localtime_rz sys_localtime_rz +#define mktime_z sys_mktime_z +#define posix2time_z sys_posix2time_z +#define time2posix_z sys_time2posix_z +#define timezone_t sys_timezone_t +#define tzalloc sys_tzalloc +#define tzfree sys_tzfree +#include <time.h> +#undef localtime_rz +#undef mktime_z +#undef posix2time_z +#undef time2posix_z +#undef timezone_t +#undef tzalloc +#undef tzfree + +#include "sys/types.h" /* for time_t */ +#include "stdio.h" +#include "string.h" +#include "limits.h" /* for CHAR_BIT et al. */ +#include "stdlib.h" + +#include "errno.h" + +#ifndef ENAMETOOLONG +# define ENAMETOOLONG EINVAL +#endif +#ifndef EOVERFLOW +# define EOVERFLOW EINVAL +#endif + +#if HAVE_GETTEXT +#include "libintl.h" +#endif /* HAVE_GETTEXT */ + +#if HAVE_SYS_WAIT_H +#include <sys/wait.h> /* for WIFEXITED and WEXITSTATUS */ +#endif /* HAVE_SYS_WAIT_H */ + +#ifndef WIFEXITED +#define WIFEXITED(status) (((status) & 0xff) == 0) +#endif /* !defined WIFEXITED */ +#ifndef WEXITSTATUS +#define WEXITSTATUS(status) (((status) >> 8) & 0xff) +#endif /* !defined WEXITSTATUS */ + +#if HAVE_UNISTD_H +#include "unistd.h" /* for F_OK, R_OK, and other POSIX goodness */ +#endif /* HAVE_UNISTD_H */ + +#ifndef HAVE_STRFTIME_L +# if _POSIX_VERSION < 200809 +# define HAVE_STRFTIME_L 0 +# else +# define HAVE_STRFTIME_L 1 +# endif +#endif + +#ifndef F_OK +#define F_OK 0 +#endif /* !defined F_OK */ +#ifndef R_OK +#define R_OK 4 +#endif /* !defined R_OK */ + +/* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */ +#define is_digit(c) ((unsigned)(c) - '0' <= 9) + +/* +** Define HAVE_STDINT_H's default value here, rather than at the +** start, since __GLIBC__'s value depends on previously-included +** files. +** (glibc 2.1 and later have stdint.h, even with pre-C99 compilers.) +*/ +#ifndef HAVE_STDINT_H +#define HAVE_STDINT_H \ + (199901 <= __STDC_VERSION__ \ + || 2 < __GLIBC__ + (1 <= __GLIBC_MINOR__) \ + || __CYGWIN__) +#endif /* !defined HAVE_STDINT_H */ + +#if HAVE_STDINT_H +#include "stdint.h" +#endif /* !HAVE_STDINT_H */ + +#ifndef HAVE_INTTYPES_H +# define HAVE_INTTYPES_H HAVE_STDINT_H +#endif +#if HAVE_INTTYPES_H +# include <inttypes.h> +#endif + +/* Pre-C99 GCC compilers define __LONG_LONG_MAX__ instead of LLONG_MAX. */ +#ifdef __LONG_LONG_MAX__ +# ifndef LLONG_MAX +# define LLONG_MAX __LONG_LONG_MAX__ +# endif +# ifndef LLONG_MIN +# define LLONG_MIN (-1 - LLONG_MAX) +# endif +#endif + +#ifndef INT_FAST64_MAX +# ifdef LLONG_MAX +typedef long long int_fast64_t; +# define INT_FAST64_MIN LLONG_MIN +# define INT_FAST64_MAX LLONG_MAX +# else +# if LONG_MAX >> 31 < 0xffffffff +Please use a compiler that supports a 64-bit integer type (or wider); +you may need to compile with "-DHAVE_STDINT_H". +# endif +typedef long int_fast64_t; +# define INT_FAST64_MIN LONG_MIN +# define INT_FAST64_MAX LONG_MAX +# endif +#endif + +#ifndef SCNdFAST64 +# if INT_FAST64_MAX == LLONG_MAX +# define SCNdFAST64 "lld" +# else +# define SCNdFAST64 "ld" +# endif +#endif + +#ifndef INT_FAST32_MAX +# if INT_MAX >> 31 == 0 +typedef long int_fast32_t; +# define INT_FAST32_MAX LONG_MAX +# define INT_FAST32_MIN LONG_MIN +# else +typedef int int_fast32_t; +# define INT_FAST32_MAX INT_MAX +# define INT_FAST32_MIN INT_MIN +# endif +#endif + +#ifndef INTMAX_MAX +# ifdef LLONG_MAX +typedef long long intmax_t; +# define strtoimax strtoll +# define INTMAX_MAX LLONG_MAX +# define INTMAX_MIN LLONG_MIN +# else +typedef long intmax_t; +# define strtoimax strtol +# define INTMAX_MAX LONG_MAX +# define INTMAX_MIN LONG_MIN +# endif +#endif + +#ifndef PRIdMAX +# if INTMAX_MAX == LLONG_MAX +# define PRIdMAX "lld" +# else +# define PRIdMAX "ld" +# endif +#endif + +#ifndef UINT_FAST64_MAX +# if defined ULLONG_MAX || defined __LONG_LONG_MAX__ +typedef unsigned long long uint_fast64_t; +# else +# if ULONG_MAX >> 31 >> 1 < 0xffffffff +Please use a compiler that supports a 64-bit integer type (or wider); +you may need to compile with "-DHAVE_STDINT_H". +# endif +typedef unsigned long uint_fast64_t; +# endif +#endif + +#ifndef UINTMAX_MAX +# if defined ULLONG_MAX || defined __LONG_LONG_MAX__ +typedef unsigned long long uintmax_t; +# else +typedef unsigned long uintmax_t; +# endif +#endif + +#ifndef PRIuMAX +# if defined ULLONG_MAX || defined __LONG_LONG_MAX__ +# define PRIuMAX "llu" +# else +# define PRIuMAX "lu" +# endif +#endif + +#ifndef INT32_MAX +#define INT32_MAX 0x7fffffff +#endif /* !defined INT32_MAX */ +#ifndef INT32_MIN +#define INT32_MIN (-1 - INT32_MAX) +#endif /* !defined INT32_MIN */ + +#ifndef SIZE_MAX +#define SIZE_MAX ((size_t) -1) +#endif + +#if 2 < __GNUC__ + (96 <= __GNUC_MINOR__) +# define ATTRIBUTE_CONST __attribute__ ((const)) +# define ATTRIBUTE_PURE __attribute__ ((__pure__)) +# define ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec)) +#else +# define ATTRIBUTE_CONST /* empty */ +# define ATTRIBUTE_PURE /* empty */ +# define ATTRIBUTE_FORMAT(spec) /* empty */ +#endif + +#if !defined _Noreturn && __STDC_VERSION__ < 201112 +# if 2 < __GNUC__ + (8 <= __GNUC_MINOR__) +# define _Noreturn __attribute__ ((__noreturn__)) +# else +# define _Noreturn +# endif +#endif + +#if __STDC_VERSION__ < 199901 && !defined restrict +# define restrict /* empty */ +#endif + +/* +** Workarounds for compilers/systems. +*/ + +/* +** Compile with -Dtime_tz=T to build the tz package with a private +** time_t type equivalent to T rather than the system-supplied time_t. +** This debugging feature can test unusual design decisions +** (e.g., time_t wider than 'long', or unsigned time_t) even on +** typical platforms. +*/ +#ifdef time_tz +# ifdef LOCALTIME_IMPLEMENTATION +static time_t sys_time(time_t *x) { return time(x); } +# endif + +typedef time_tz tz_time_t; + +# undef ctime +# define ctime tz_ctime +# undef ctime_r +# define ctime_r tz_ctime_r +# undef difftime +# define difftime tz_difftime +# undef gmtime +# define gmtime tz_gmtime +# undef gmtime_r +# define gmtime_r tz_gmtime_r +# undef localtime +# define localtime tz_localtime +# undef localtime_r +# define localtime_r tz_localtime_r +# undef localtime_rz +# define localtime_rz tz_localtime_rz +# undef mktime +# define mktime tz_mktime +# undef mktime_z +# define mktime_z tz_mktime_z +# undef offtime +# define offtime tz_offtime +# undef posix2time +# define posix2time tz_posix2time +# undef posix2time_z +# define posix2time_z tz_posix2time_z +# undef time +# define time tz_time +# undef time2posix +# define time2posix tz_time2posix +# undef time2posix_z +# define time2posix_z tz_time2posix_z +# undef time_t +# define time_t tz_time_t +# undef timegm +# define timegm tz_timegm +# undef timelocal +# define timelocal tz_timelocal +# undef timeoff +# define timeoff tz_timeoff +# undef tzalloc +# define tzalloc tz_tzalloc +# undef tzfree +# define tzfree tz_tzfree +# undef tzset +# define tzset tz_tzset +# undef tzsetwall +# define tzsetwall tz_tzsetwall + +char *ctime(time_t const *); +char *ctime_r(time_t const *, char *); +double difftime(time_t, time_t); +struct tm *gmtime(time_t const *); +struct tm *gmtime_r(time_t const *restrict, struct tm *restrict); +struct tm *localtime(time_t const *); +struct tm *localtime_r(time_t const *restrict, struct tm *restrict); +time_t mktime(struct tm *); +time_t time(time_t *); +void tzset(void); +#endif + +/* +** Some time.h implementations don't declare asctime_r. +** Others might define it as a macro. +** Fix the former without affecting the latter. +** Similarly for timezone, daylight, and altzone. +*/ + +#ifndef asctime_r +extern char * asctime_r(struct tm const *restrict, char *restrict); +#endif + +#ifdef USG_COMPAT +# ifndef timezone +extern long timezone; +# endif +# ifndef daylight +extern int daylight; +# endif +#endif +#if defined ALTZONE && !defined altzone +extern long altzone; +#endif + +/* +** The STD_INSPIRED functions are similar, but most also need +** declarations if time_tz is defined. +*/ + +#ifdef STD_INSPIRED +# if !defined tzsetwall || defined time_tz +void tzsetwall(void); +# endif +# if !defined offtime || defined time_tz +struct tm *offtime(time_t const *, long); +# endif +# if !defined timegm || defined time_tz +time_t timegm(struct tm *); +# endif +# if !defined timelocal || defined time_tz +time_t timelocal(struct tm *); +# endif +# if !defined timeoff || defined time_tz +time_t timeoff(struct tm *, long); +# endif +# if !defined time2posix || defined time_tz +time_t time2posix(time_t); +# endif +# if !defined posix2time || defined time_tz +time_t posix2time(time_t); +# endif +#endif + +/* Infer TM_ZONE on systems where this information is known, but suppress + guessing if NO_TM_ZONE is defined. Similarly for TM_GMTOFF. */ +#if (defined __GLIBC__ \ + || defined __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ \ + || (defined __APPLE__ && defined __MACH__)) +# if !defined TM_GMTOFF && !defined NO_TM_GMTOFF +# define TM_GMTOFF tm_gmtoff +# endif +# if !defined TM_ZONE && !defined NO_TM_ZONE +# define TM_ZONE tm_zone +# endif +#endif + +/* +** Define functions that are ABI compatible with NetBSD but have +** better prototypes. NetBSD 6.1.4 defines a pointer type timezone_t +** and labors under the misconception that 'const timezone_t' is a +** pointer to a constant. This use of 'const' is ineffective, so it +** is not done here. What we call 'struct state' NetBSD calls +** 'struct __state', but this is a private name so it doesn't matter. +*/ +#if NETBSD_INSPIRED +typedef struct state *timezone_t; +struct tm *localtime_rz(timezone_t restrict, time_t const *restrict, + struct tm *restrict); +time_t mktime_z(timezone_t restrict, struct tm *restrict); +timezone_t tzalloc(char const *); +void tzfree(timezone_t); +# ifdef STD_INSPIRED +# if !defined posix2time_z || defined time_tz +time_t posix2time_z(timezone_t, time_t) ATTRIBUTE_PURE; +# endif +# if !defined time2posix_z || defined time_tz +time_t time2posix_z(timezone_t, time_t) ATTRIBUTE_PURE; +# endif +# endif +#endif + +/* +** Finally, some convenience items. +*/ + +#if __STDC_VERSION__ < 199901 +# define true 1 +# define false 0 +# define bool int +#else +# include <stdbool.h> +#endif + +#ifndef TYPE_BIT +#define TYPE_BIT(type) (sizeof (type) * CHAR_BIT) +#endif /* !defined TYPE_BIT */ + +#ifndef TYPE_SIGNED +#define TYPE_SIGNED(type) (((type) -1) < 0) +#endif /* !defined TYPE_SIGNED */ + +#define TWOS_COMPLEMENT(t) ((t) ~ (t) 0 < 0) + +/* Max and min values of the integer type T, of which only the bottom + B bits are used, and where the highest-order used bit is considered + to be a sign bit if T is signed. */ +#define MAXVAL(t, b) \ + ((t) (((t) 1 << ((b) - 1 - TYPE_SIGNED(t))) \ + - 1 + ((t) 1 << ((b) - 1 - TYPE_SIGNED(t))))) +#define MINVAL(t, b) \ + ((t) (TYPE_SIGNED(t) ? - TWOS_COMPLEMENT(t) - MAXVAL(t, b) : 0)) + +/* The minimum and maximum finite time values. This assumes no padding. */ +static time_t const time_t_min = MINVAL(time_t, TYPE_BIT(time_t)); +static time_t const time_t_max = MAXVAL(time_t, TYPE_BIT(time_t)); + +#ifndef INT_STRLEN_MAXIMUM +/* +** 302 / 1000 is log10(2.0) rounded up. +** Subtract one for the sign bit if the type is signed; +** add one for integer division truncation; +** add one more for a minus sign if the type is signed. +*/ +#define INT_STRLEN_MAXIMUM(type) \ + ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \ + 1 + TYPE_SIGNED(type)) +#endif /* !defined INT_STRLEN_MAXIMUM */ + +/* +** INITIALIZE(x) +*/ + +#ifdef lint +# define INITIALIZE(x) ((x) = 0) +#else +# define INITIALIZE(x) +#endif + +#ifndef UNINIT_TRAP +# define UNINIT_TRAP 0 +#endif + +/* +** For the benefit of GNU folk... +** '_(MSGID)' uses the current locale's message library string for MSGID. +** The default is to use gettext if available, and use MSGID otherwise. +*/ + +#ifndef _ +#if HAVE_GETTEXT +#define _(msgid) gettext(msgid) +#else /* !HAVE_GETTEXT */ +#define _(msgid) msgid +#endif /* !HAVE_GETTEXT */ +#endif /* !defined _ */ + +#if !defined TZ_DOMAIN && defined HAVE_GETTEXT +# define TZ_DOMAIN "tz" +#endif + +#if HAVE_INCOMPATIBLE_CTIME_R +#undef asctime_r +#undef ctime_r +char *asctime_r(struct tm const *, char *); +char *ctime_r(time_t const *, char *); +#endif /* HAVE_INCOMPATIBLE_CTIME_R */ + +#ifndef YEARSPERREPEAT +#define YEARSPERREPEAT 400 /* years before a Gregorian repeat */ +#endif /* !defined YEARSPERREPEAT */ + +/* +** The Gregorian year averages 365.2425 days, which is 31556952 seconds. +*/ + +#ifndef AVGSECSPERYEAR +#define AVGSECSPERYEAR 31556952L +#endif /* !defined AVGSECSPERYEAR */ + +#ifndef SECSPERREPEAT +#define SECSPERREPEAT ((int_fast64_t) YEARSPERREPEAT * (int_fast64_t) AVGSECSPERYEAR) +#endif /* !defined SECSPERREPEAT */ + +#ifndef SECSPERREPEAT_BITS +#define SECSPERREPEAT_BITS 34 /* ceil(log2(SECSPERREPEAT)) */ +#endif /* !defined SECSPERREPEAT_BITS */ + +#endif /* !defined PRIVATE_H */ |