419 lines
10 KiB
C
419 lines
10 KiB
C
#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_ADJTIME=0'.
|
|
*/
|
|
|
|
#ifndef HAVE_ADJTIME
|
|
#define HAVE_ADJTIME 1
|
|
#endif /* !defined HAVE_ADJTIME */
|
|
|
|
#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_SETTIMEOFDAY
|
|
#define HAVE_SETTIMEOFDAY 3
|
|
#endif /* !defined HAVE_SETTIMEOFDAY */
|
|
|
|
#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 0
|
|
#endif /* !defined HAVE_UTMPX_H */
|
|
|
|
#ifndef LOCALE_HOME
|
|
#define LOCALE_HOME "/usr/lib/locale"
|
|
#endif /* !defined LOCALE_HOME */
|
|
|
|
#if HAVE_INCOMPATIBLE_CTIME_R
|
|
#define asctime_r _incompatible_asctime_r
|
|
#define ctime_r _incompatible_ctime_r
|
|
#endif /* HAVE_INCOMPATIBLE_CTIME_R */
|
|
|
|
/*
|
|
** Nested includes
|
|
*/
|
|
|
|
#include "sys/types.h" /* for time_t */
|
|
#include "stdio.h"
|
|
#include "errno.h"
|
|
#include "string.h"
|
|
#include "limits.h" /* for CHAR_BIT et al. */
|
|
#include "time.h"
|
|
#include "stdlib.h"
|
|
|
|
#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 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__ + (0 < __GLIBC_MINOR__)))
|
|
#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
|
|
|
|
#ifndef INT_FAST64_MAX
|
|
/* Pre-C99 GCC compilers define __LONG_LONG_MAX__ instead of LLONG_MAX. */
|
|
#if defined LLONG_MAX || defined __LONG_LONG_MAX__
|
|
typedef long long int_fast64_t;
|
|
# ifdef LLONG_MAX
|
|
# define INT_FAST64_MIN LLONG_MIN
|
|
# define INT_FAST64_MAX LLONG_MAX
|
|
# else
|
|
# define INT_FAST64_MIN __LONG_LONG_MIN__
|
|
# define INT_FAST64_MAX __LONG_LONG_MAX__
|
|
# endif
|
|
# define SCNdFAST64 "lld"
|
|
#else /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */
|
|
#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 /* (LONG_MAX >> 31) < 0xffffffff */
|
|
typedef long int_fast64_t;
|
|
# define INT_FAST64_MIN LONG_MIN
|
|
# define INT_FAST64_MAX LONG_MAX
|
|
# define SCNdFAST64 "ld"
|
|
#endif /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */
|
|
#endif /* !defined INT_FAST64_MAX */
|
|
|
|
#ifndef INT_FAST32_MAX
|
|
# if INT_MAX >> 31 == 0
|
|
typedef long int_fast32_t;
|
|
# else
|
|
typedef int int_fast32_t;
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef INTMAX_MAX
|
|
# if defined LLONG_MAX || defined __LONG_LONG_MAX__
|
|
typedef long long intmax_t;
|
|
# define strtoimax strtoll
|
|
# define PRIdMAX "lld"
|
|
# ifdef LLONG_MAX
|
|
# define INTMAX_MAX LLONG_MAX
|
|
# define INTMAX_MIN LLONG_MIN
|
|
# else
|
|
# define INTMAX_MAX __LONG_LONG_MAX__
|
|
# define INTMAX_MIN __LONG_LONG_MIN__
|
|
# endif
|
|
# else
|
|
typedef long intmax_t;
|
|
# define strtoimax strtol
|
|
# define PRIdMAX "ld"
|
|
# define INTMAX_MAX LONG_MAX
|
|
# define INTMAX_MIN LONG_MIN
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef UINTMAX_MAX
|
|
# if defined ULLONG_MAX || defined __LONG_LONG_MAX__
|
|
typedef unsigned long long uintmax_t;
|
|
# define PRIuMAX "llu"
|
|
# else
|
|
typedef unsigned long uintmax_t;
|
|
# 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 */
|
|
|
|
#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.
|
|
*/
|
|
|
|
/*
|
|
** Some time.h implementations don't declare asctime_r.
|
|
** Others might define it as a macro.
|
|
** Fix the former without affecting the latter.
|
|
*/
|
|
|
|
#ifndef asctime_r
|
|
extern char * asctime_r(struct tm const *, char *);
|
|
#endif
|
|
|
|
/*
|
|
** 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
|
|
static time_t sys_time(time_t *x) { return time(x); }
|
|
|
|
# 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 mktime
|
|
# define mktime tz_mktime
|
|
# undef time
|
|
# define time tz_time
|
|
# undef time_t
|
|
# define time_t tz_time_t
|
|
|
|
typedef time_tz time_t;
|
|
|
|
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 *);
|
|
|
|
static time_t
|
|
time(time_t *p)
|
|
{
|
|
time_t r = sys_time(0);
|
|
if (p)
|
|
*p = r;
|
|
return r;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
** Private function declarations.
|
|
*/
|
|
|
|
char * icatalloc(char * old, const char * new);
|
|
char * icpyalloc(const char * string);
|
|
const char * scheck(const char * string, const char * format);
|
|
|
|
/*
|
|
** Finally, some convenience items.
|
|
*/
|
|
|
|
#ifndef TRUE
|
|
#define TRUE 1
|
|
#endif /* !defined TRUE */
|
|
|
|
#ifndef FALSE
|
|
#define FALSE 0
|
|
#endif /* !defined FALSE */
|
|
|
|
#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 */
|
|
|
|
/* The minimum and maximum finite time values. */
|
|
static time_t const time_t_min =
|
|
(TYPE_SIGNED(time_t)
|
|
? (time_t) -1 << (CHAR_BIT * sizeof (time_t) - 1)
|
|
: 0);
|
|
static time_t const time_t_max =
|
|
(TYPE_SIGNED(time_t)
|
|
? - (~ 0 < 0) - ((time_t) -1 << (CHAR_BIT * sizeof (time_t) - 1))
|
|
: -1);
|
|
|
|
#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)
|
|
*/
|
|
|
|
#ifndef GNUC_or_lint
|
|
#ifdef lint
|
|
#define GNUC_or_lint
|
|
#endif /* defined lint */
|
|
#ifndef lint
|
|
#ifdef __GNUC__
|
|
#define GNUC_or_lint
|
|
#endif /* defined __GNUC__ */
|
|
#endif /* !defined lint */
|
|
#endif /* !defined GNUC_or_lint */
|
|
|
|
#ifndef INITIALIZE
|
|
#ifdef GNUC_or_lint
|
|
#define INITIALIZE(x) ((x) = 0)
|
|
#endif /* defined GNUC_or_lint */
|
|
#ifndef GNUC_or_lint
|
|
#define INITIALIZE(x)
|
|
#endif /* !defined GNUC_or_lint */
|
|
#endif /* !defined INITIALIZE */
|
|
|
|
/*
|
|
** 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 _ */
|
|
|
|
#ifndef TZ_DOMAIN
|
|
#define TZ_DOMAIN "tz"
|
|
#endif /* !defined TZ_DOMAIN */
|
|
|
|
#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 */
|
|
|
|
/*
|
|
** UNIX was a registered trademark of The Open Group in 2003.
|
|
*/
|
|
|
|
#endif /* !defined PRIVATE_H */
|