| #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_DECL_ASCTIME_R |
| #define HAVE_DECL_ASCTIME_R 1 |
| #endif |
| |
| #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_POSIX_DECLS |
| #define HAVE_POSIX_DECLS 1 |
| #endif |
| |
| #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 ENOTSUP |
| # define ENOTSUP 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 |
| |
| #if !HAVE_DECL_ASCTIME_R && !defined asctime_r |
| extern char *asctime_r(struct tm const *restrict, char *restrict); |
| #endif |
| |
| #if !HAVE_POSIX_DECLS |
| # ifdef USG_COMPAT |
| # ifndef timezone |
| extern long timezone; |
| # endif |
| # ifndef daylight |
| extern int daylight; |
| # endif |
| # 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 */ |