1 /* 2 * $FreeBSD: head/contrib/tzcode/stdtime/private.h 192625 2009-05-23 06:31:50Z edwin $ 3 */ 4 5 #ifndef PRIVATE_H 6 7 #define PRIVATE_H 8 /* 9 ** This file is in the public domain, so clarified as of 10 ** 1996-06-05 by Arthur David Olson. 11 */ 12 13 /* Stuff moved from Makefile.inc to reduce clutter */ 14 #ifndef TM_GMTOFF 15 #define TM_GMTOFF tm_gmtoff 16 #define TM_ZONE tm_zone 17 #define TZDIR "/usr/share/zoneinfo" 18 #endif /* ndef TM_GMTOFF */ 19 20 /* 21 ** This header is for use ONLY with the time conversion code. 22 ** There is no guarantee that it will remain unchanged, 23 ** or that it will remain at all. 24 ** Do NOT copy it to any system include directory. 25 ** Thank you! 26 */ 27 28 #define GRANDPARENTED "Local time zone must be set--see zic manual page" 29 30 /* 31 ** Defaults for preprocessor symbols. 32 ** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'. 33 */ 34 35 #ifndef HAVE_GETTEXT 36 #define HAVE_GETTEXT 0 37 #endif /* !defined HAVE_GETTEXT */ 38 39 /* 40 ** Nested includes 41 */ 42 43 #include "sys/types.h" /* for time_t */ 44 #include "stdio.h" 45 #include "errno.h" 46 #include "string.h" 47 #include "limits.h" /* for CHAR_BIT et al. */ 48 #include "time.h" 49 #include "stdlib.h" 50 51 #if HAVE_GETTEXT 52 #include "libintl.h" 53 #endif /* HAVE_GETTEXT */ 54 55 #include <sys/wait.h> /* for WIFEXITED and WEXITSTATUS */ 56 57 #include "unistd.h" /* for F_OK, R_OK, and other POSIX goodness */ 58 59 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */ 60 #define is_digit(c) ((unsigned)(c) - '0' <= 9) 61 62 #include "stdint.h" 63 #include <inttypes.h> 64 65 /* 66 ** Private function declarations. 67 */ 68 69 char * icatalloc(char * old, const char * new); 70 char * icpyalloc(const char * string); 71 const char * scheck(const char * string, const char * format); 72 73 /* 74 ** Finally, some convenience items. 75 */ 76 77 #ifndef TRUE 78 #define TRUE 1 79 #endif /* !defined TRUE */ 80 81 #ifndef FALSE 82 #define FALSE 0 83 #endif /* !defined FALSE */ 84 85 #ifndef TYPE_BIT 86 #define TYPE_BIT(type) (sizeof (type) * CHAR_BIT) 87 #endif /* !defined TYPE_BIT */ 88 89 #ifndef TYPE_SIGNED 90 #define TYPE_SIGNED(type) (((type) -1) < 0) 91 #endif /* !defined TYPE_SIGNED */ 92 93 /* The minimum and maximum finite time values. */ 94 static time_t const time_t_min = 95 (TYPE_SIGNED(time_t) 96 ? (time_t) -1 << (CHAR_BIT * sizeof (time_t) - 1) 97 : 0); 98 static time_t const time_t_max = 99 (TYPE_SIGNED(time_t) 100 ? - (~ 0 < 0) - ((time_t) -1 << (CHAR_BIT * sizeof (time_t) - 1)) 101 : -1); 102 103 /* 104 ** Since the definition of TYPE_INTEGRAL contains floating point numbers, 105 ** it cannot be used in preprocessor directives. 106 */ 107 108 #ifndef TYPE_INTEGRAL 109 #define TYPE_INTEGRAL(type) (((type) 0.5) != 0.5) 110 #endif /* !defined TYPE_INTEGRAL */ 111 112 #ifndef INT_STRLEN_MAXIMUM 113 /* 114 ** 302 / 1000 is log10(2.0) rounded up. 115 ** Subtract one for the sign bit if the type is signed; 116 ** add one for integer division truncation; 117 ** add one more for a minus sign if the type is signed. 118 */ 119 #define INT_STRLEN_MAXIMUM(type) \ 120 ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \ 121 1 + TYPE_SIGNED(type)) 122 #endif /* !defined INT_STRLEN_MAXIMUM */ 123 124 /* 125 ** INITIALIZE(x) 126 */ 127 128 #ifndef GNUC_or_lint 129 #ifdef lint 130 #define GNUC_or_lint 131 #endif /* defined lint */ 132 #ifndef lint 133 #ifdef __GNUC__ 134 #define GNUC_or_lint 135 #endif /* defined __GNUC__ */ 136 #endif /* !defined lint */ 137 #endif /* !defined GNUC_or_lint */ 138 139 #ifndef INITIALIZE 140 #ifdef GNUC_or_lint 141 #define INITIALIZE(x) ((x) = 0) 142 #endif /* defined GNUC_or_lint */ 143 #ifndef GNUC_or_lint 144 #define INITIALIZE(x) 145 #endif /* !defined GNUC_or_lint */ 146 #endif /* !defined INITIALIZE */ 147 148 /* 149 ** For the benefit of GNU folk... 150 ** `_(MSGID)' uses the current locale's message library string for MSGID. 151 ** The default is to use gettext if available, and use MSGID otherwise. 152 */ 153 154 #ifndef _ 155 #if HAVE_GETTEXT 156 #define _(msgid) gettext(msgid) 157 #else /* !HAVE_GETTEXT */ 158 #define _(msgid) msgid 159 #endif /* !HAVE_GETTEXT */ 160 #endif /* !defined _ */ 161 162 #ifndef TZ_DOMAIN 163 #define TZ_DOMAIN "tz" 164 #endif /* !defined TZ_DOMAIN */ 165 166 #ifndef YEARSPERREPEAT 167 #define YEARSPERREPEAT 400 /* years before a Gregorian repeat */ 168 #endif /* !defined YEARSPERREPEAT */ 169 170 /* 171 ** The Gregorian year averages 365.2425 days, which is 31556952 seconds. 172 */ 173 174 #ifndef AVGSECSPERYEAR 175 #define AVGSECSPERYEAR 31556952L 176 #endif /* !defined AVGSECSPERYEAR */ 177 178 #ifndef SECSPERREPEAT 179 #define SECSPERREPEAT ((int_fast64_t) YEARSPERREPEAT * (int_fast64_t) AVGSECSPERYEAR) 180 #endif /* !defined SECSPERREPEAT */ 181 182 #ifndef SECSPERREPEAT_BITS 183 #define SECSPERREPEAT_BITS 34 /* ceil(log2(SECSPERREPEAT)) */ 184 #endif /* !defined SECSPERREPEAT_BITS */ 185 186 /* 187 ** UNIX was a registered trademark of The Open Group in 2003. 188 */ 189 190 #endif /* !defined PRIVATE_H */ 191