libc/tzcode/private.h - platform/bionic - Git at Google

 #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!
 */

 /*
 ** ID
 */

 #ifndef lint
 #ifndef NOID
 static char privatehid[] = "@(#)private.h   8.2";
 #endif /* !defined NOID */
 #endif /* !defined lint */

 #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_SETTIMEOFDAY
 #define HAVE_SETTIMEOFDAY   3
 #endif /* !defined HAVE_SETTIMEOFDAY */

 #ifndef HAVE_STRERROR
 #define HAVE_STRERROR       1
 #endif /* !defined HAVE_STRERROR */

 #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 */

 #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 and R_OK */
 #endif /* HAVE_UNISTD_H */

 #if !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 */
 #endif /* !HAVE_UNISTD_H */

 /* 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 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;
 #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;
 #endif /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */
 #endif /* !defined INT_FAST64_MAX */

 #ifndef INT32_MAX
 #define INT32_MAX 0x7fffffff
 #endif /* !defined INT32_MAX */
 #ifndef INT32_MIN
 #define INT32_MIN (-1 - INT32_MAX)
 #endif /* !defined INT32_MIN */

 /*
 ** Workarounds for compilers/systems.
 */

 /*
 ** If your compiler lacks prototypes, "#define P(x) ()".
 */

 #ifndef P
 #define P(x)    x
 #endif /* !defined P */

 /*
 ** SunOS 4.1.1 headers lack EXIT_SUCCESS.
 */

 #ifndef EXIT_SUCCESS
 #define EXIT_SUCCESS    0
 #endif /* !defined EXIT_SUCCESS */

 /*
 ** SunOS 4.1.1 headers lack EXIT_FAILURE.
 */

 #ifndef EXIT_FAILURE
 #define EXIT_FAILURE    1
 #endif /* !defined EXIT_FAILURE */

 /*
 ** SunOS 4.1.1 headers lack FILENAME_MAX.
 */

 #ifndef FILENAME_MAX

 #ifndef MAXPATHLEN
 #ifdef unix
 #include "sys/param.h"
 #endif /* defined unix */
 #endif /* !defined MAXPATHLEN */

 #ifdef MAXPATHLEN
 #define FILENAME_MAX    MAXPATHLEN
 #endif /* defined MAXPATHLEN */
 #ifndef MAXPATHLEN
 #define FILENAME_MAX    1024        /* Pure guesswork */
 #endif /* !defined MAXPATHLEN */

 #endif /* !defined FILENAME_MAX */

 /*
 ** SunOS 4.1.1 libraries lack remove.
 */

 #ifndef remove
 extern int  unlink P((const char * filename));
 #define remove  unlink
 #endif /* !defined remove */

 /*
 ** Some ancient errno.h implementations don't declare errno.
 ** But some newer errno.h implementations define it as a macro.
 ** Fix the former without affecting the latter.
 */

 #ifndef errno
 extern int errno;
 #endif /* !defined errno */

 /*
 ** 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();
 #endif

 /*
 ** Private function declarations.
 */

 char *      icalloc P((int nelem, int elsize));
 char *      icatalloc P((char * old, const char * new));
 char *      icpyalloc P((const char * string));
 char *      imalloc P((int n));
 void *      irealloc P((void * pointer, int size));
 void        icfree P((char * pointer));
 void        ifree P((char * pointer));
 const char *    scheck P((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 */

 /*
 ** Since the definition of TYPE_INTEGRAL contains floating point numbers,
 ** it cannot be used in preprocessor directives.
 */

 #ifndef TYPE_INTEGRAL
 #define TYPE_INTEGRAL(type) (((type) 0.5) != 0.5)
 #endif /* !defined TYPE_INTEGRAL */

 #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 P((struct tm const *, char *));
 char *ctime_r P((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 */
	#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!
	*/

	/*
	** ID
	*/

	#ifndef lint
	#ifndef NOID
	static char privatehid[] = "@(#)private.h 8.2";
	#endif /* !defined NOID */
	#endif /* !defined lint */

	#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_SETTIMEOFDAY
	#define HAVE_SETTIMEOFDAY 3
	#endif /* !defined HAVE_SETTIMEOFDAY */

	#ifndef HAVE_STRERROR
	#define HAVE_STRERROR 1
	#endif /* !defined HAVE_STRERROR */

	#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 */

	#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 and R_OK */
	#endif /* HAVE_UNISTD_H */

	#if !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 */
	#endif /* !HAVE_UNISTD_H */

	/* 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 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;
	#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;
	#endif /* ! (defined LLONG_MAX \|\| defined __LONG_LONG_MAX__) */
	#endif /* !defined INT_FAST64_MAX */

	#ifndef INT32_MAX
	#define INT32_MAX 0x7fffffff
	#endif /* !defined INT32_MAX */
	#ifndef INT32_MIN
	#define INT32_MIN (-1 - INT32_MAX)
	#endif /* !defined INT32_MIN */

	/*
	** Workarounds for compilers/systems.
	*/

	/*
	** If your compiler lacks prototypes, "#define P(x) ()".
	*/

	#ifndef P
	#define P(x) x
	#endif /* !defined P */

	/*
	** SunOS 4.1.1 headers lack EXIT_SUCCESS.
	*/

	#ifndef EXIT_SUCCESS
	#define EXIT_SUCCESS 0
	#endif /* !defined EXIT_SUCCESS */

	/*
	** SunOS 4.1.1 headers lack EXIT_FAILURE.
	*/

	#ifndef EXIT_FAILURE
	#define EXIT_FAILURE 1
	#endif /* !defined EXIT_FAILURE */

	/*
	** SunOS 4.1.1 headers lack FILENAME_MAX.
	*/

	#ifndef FILENAME_MAX

	#ifndef MAXPATHLEN
	#ifdef unix
	#include "sys/param.h"
	#endif /* defined unix */
	#endif /* !defined MAXPATHLEN */

	#ifdef MAXPATHLEN
	#define FILENAME_MAX MAXPATHLEN
	#endif /* defined MAXPATHLEN */
	#ifndef MAXPATHLEN
	#define FILENAME_MAX 1024 /* Pure guesswork */
	#endif /* !defined MAXPATHLEN */

	#endif /* !defined FILENAME_MAX */

	/*
	** SunOS 4.1.1 libraries lack remove.
	*/

	#ifndef remove
	extern int unlink P((const char * filename));
	#define remove unlink
	#endif /* !defined remove */

	/*
	** Some ancient errno.h implementations don't declare errno.
	** But some newer errno.h implementations define it as a macro.
	** Fix the former without affecting the latter.
	*/

	#ifndef errno
	extern int errno;
	#endif /* !defined errno */

	/*
	** 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();
	#endif

	/*
	** Private function declarations.
	*/

	char * icalloc P((int nelem, int elsize));
	char * icatalloc P((char * old, const char * new));
	char * icpyalloc P((const char * string));
	char * imalloc P((int n));
	void * irealloc P((void * pointer, int size));
	void icfree P((char * pointer));
	void ifree P((char * pointer));
	const char * scheck P((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 */

	/*
	** Since the definition of TYPE_INTEGRAL contains floating point numbers,
	** it cannot be used in preprocessor directives.
	*/

	#ifndef TYPE_INTEGRAL
	#define TYPE_INTEGRAL(type) (((type) 0.5) != 0.5)
	#endif /* !defined TYPE_INTEGRAL */

	#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 P((struct tm const , char *));
	char ctime_r P((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 */