usr.sbin/zic/private.h

   1 /*
   2  * @(#)private.h        8.6
   3  * $FreeBSD: src/lib/libc/stdtime/private.h,v 1.6.8.1 2000/08/23 00:19:15 jhb Exp $
   4  * $DragonFly: src/usr.sbin/zic/private.h,v 1.4 2008/10/19 20:15:58 swildner Exp $
   5  */
   6
   7 #ifndef PRIVATE_H
   8
   9 #define PRIVATE_H
  10 /*
  11 ** This file is in the public domain, so clarified as of
  12 ** 1996-06-05 by Arthur David Olson.
  13 */
  14
  15 /* Stuff moved from Makefile.inc to reduce clutter */
  16 #ifndef TM_GMTOFF
  17 #define TM_GMTOFF       tm_gmtoff
  18 #define TM_ZONE         tm_zone
  19 #define STD_INSPIRED    1
  20 #define PCTS            1
  21 #define HAVE_LONG_DOUBLE 1
  22 #define HAVE_STRERROR   1
  23 #define HAVE_UNISTD_H   1
  24 #define LOCALE_HOME     _PATH_LOCALE
  25 #define TZDIR           "/usr/share/zoneinfo"
  26 #endif /* ndef TM_GMTOFF */
  27
  28 /*
  29 ** This header is for use ONLY with the time conversion code.
  30 ** There is no guarantee that it will remain unchanged,
  31 ** or that it will remain at all.
  32 ** Do NOT copy it to any system include directory.
  33 ** Thank you!
  34 */
  35
  36 #define GRANDPARENTED   "Local time zone must be set--see zic manual page"
  37
  38 /*
  39 ** Defaults for preprocessor symbols.
  40 ** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'.
  41 */
  42
  43 #ifndef HAVE_ADJTIME
  44 #define HAVE_ADJTIME            1
  45 #endif /* !defined HAVE_ADJTIME */
  46
  47 #ifndef HAVE_GETTEXT
  48 #define HAVE_GETTEXT            0
  49 #endif /* !defined HAVE_GETTEXT */
  50
  51 #ifndef HAVE_INCOMPATIBLE_CTIME_R
  52 #define HAVE_INCOMPATIBLE_CTIME_R       0
  53 #endif /* !defined INCOMPATIBLE_CTIME_R */
  54
  55 #ifndef HAVE_SETTIMEOFDAY
  56 #define HAVE_SETTIMEOFDAY       3
  57 #endif /* !defined HAVE_SETTIMEOFDAY */
  58
  59 #ifndef HAVE_SYMLINK
  60 #define HAVE_SYMLINK            1
  61 #endif /* !defined HAVE_SYMLINK */
  62
  63 #ifndef HAVE_SYS_STAT_H
  64 #define HAVE_SYS_STAT_H         1
  65 #endif /* !defined HAVE_SYS_STAT_H */
  66
  67 #ifndef HAVE_SYS_WAIT_H
  68 #define HAVE_SYS_WAIT_H         1
  69 #endif /* !defined HAVE_SYS_WAIT_H */
  70
  71 #ifndef HAVE_UNISTD_H
  72 #define HAVE_UNISTD_H           1
  73 #endif /* !defined HAVE_UNISTD_H */
  74
  75 #ifndef HAVE_UTMPX_H
  76 #define HAVE_UTMPX_H            0
  77 #endif /* !defined HAVE_UTMPX_H */
  78
  79 #ifndef LOCALE_HOME
  80 #define LOCALE_HOME             "/usr/lib/locale"
  81 #endif /* !defined LOCALE_HOME */
  82
  83 #if HAVE_INCOMPATIBLE_CTIME_R
  84 #define asctime_r _incompatible_asctime_r
  85 #define ctime_r _incompatible_ctime_r
  86 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
  87
  88 /*
  89 ** Nested includes
  90 */
  91
  92 #include "sys/types.h"  /* for time_t */
  93 #include "stdio.h"
  94 #include "errno.h"
  95 #include "string.h"
  96 #include "limits.h"     /* for CHAR_BIT et al. */
  97 #include "time.h"
  98 #include "stdlib.h"
  99
 100 #if HAVE_GETTEXT
 101 #include "libintl.h"
 102 #endif /* HAVE_GETTEXT */
 103
 104 #if HAVE_SYS_WAIT_H
 105 #include <sys/wait.h>   /* for WIFEXITED and WEXITSTATUS */
 106 #endif /* HAVE_SYS_WAIT_H */
 107
 108 #ifndef WIFEXITED
 109 #define WIFEXITED(status)       (((status) & 0xff) == 0)
 110 #endif /* !defined WIFEXITED */
 111 #ifndef WEXITSTATUS
 112 #define WEXITSTATUS(status)     (((status) >> 8) & 0xff)
 113 #endif /* !defined WEXITSTATUS */
 114
 115 #if HAVE_UNISTD_H
 116 #include "unistd.h"     /* for F_OK, R_OK, and other POSIX goodness */
 117 #endif /* HAVE_UNISTD_H */
 118
 119 #ifndef F_OK
 120 #define F_OK    0
 121 #endif /* !defined F_OK */
 122 #ifndef R_OK
 123 #define R_OK    4
 124 #endif /* !defined R_OK */
 125
 126 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */
 127 #define is_digit(c) ((unsigned)(c) - '0' <= 9)
 128
 129 /*
 130 ** Define HAVE_STDINT_H's default value here, rather than at the
 131 ** start, since __GLIBC__'s value depends on previously-included
 132 ** files.
 133 ** (glibc 2.1 and later have stdint.h, even with pre-C99 compilers.)
 134 */
 135 #ifndef HAVE_STDINT_H
 136 #define HAVE_STDINT_H \
 137         (199901 <= __STDC_VERSION__ || \
 138         2 < (__GLIBC__ + (0 < __GLIBC_MINOR__)))
 139 #endif /* !defined HAVE_STDINT_H */
 140
 141 #if HAVE_STDINT_H
 142 #include "stdint.h"
 143 #endif /* !HAVE_STDINT_H */
 144
 145 #ifndef INT_FAST64_MAX
 146 /* Pre-C99 GCC compilers define __LONG_LONG_MAX__ instead of LLONG_MAX.  */
 147 #if defined LLONG_MAX || defined __LONG_LONG_MAX__
 148 typedef long long       int_fast64_t;
 149 #else /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */
 150 #if (LONG_MAX >> 31) < 0xffffffff
 151 Please use a compiler that supports a 64-bit integer type (or wider);
 152 you may need to compile with "-DHAVE_STDINT_H".
 153 #endif /* (LONG_MAX >> 31) < 0xffffffff */
 154 typedef long            int_fast64_t;
 155 #endif /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */
 156 #endif /* !defined INT_FAST64_MAX */
 157
 158 #ifndef INT32_MAX
 159 #define INT32_MAX 0x7fffffff
 160 #endif /* !defined INT32_MAX */
 161 #ifndef INT32_MIN
 162 #define INT32_MIN (-1 - INT32_MAX)
 163 #endif /* !defined INT32_MIN */
 164
 165 /*
 166 ** Workarounds for compilers/systems.
 167 */
 168
 169 /*
 170 ** Some time.h implementations don't declare asctime_r.
 171 ** Others might define it as a macro.
 172 ** Fix the former without affecting the latter.
 173 */
 174
 175 #ifndef asctime_r
 176 extern char *   asctime_r(struct tm const *, char *);
 177 #endif
 178
 179 /*
 180 ** Private function declarations.
 181 */
 182
 183 char *          icalloc(int nelem, int elsize);
 184 char *          icatalloc(char * old, const char * new);
 185 char *          icpyalloc(const char * string);
 186 char *          imalloc(int n);
 187 void *          irealloc(void * pointer, int size);
 188 void            icfree(char * pointer);
 189 void            ifree(char * pointer);
 190 const char *    scheck(const char * string, const char * format);
 191
 192 /*
 193 ** Finally, some convenience items.
 194 */
 195
 196 #ifndef TRUE
 197 #define TRUE    1
 198 #endif /* !defined TRUE */
 199
 200 #ifndef FALSE
 201 #define FALSE   0
 202 #endif /* !defined FALSE */
 203
 204 #ifndef TYPE_BIT
 205 #define TYPE_BIT(type)  (sizeof (type) * CHAR_BIT)
 206 #endif /* !defined TYPE_BIT */
 207
 208 #ifndef TYPE_SIGNED
 209 #define TYPE_SIGNED(type) (((type) -1) < 0)
 210 #endif /* !defined TYPE_SIGNED */
 211
 212 /*
 213 ** Since the definition of TYPE_INTEGRAL contains floating point numbers,
 214 ** it cannot be used in preprocessor directives.
 215 */
 216
 217 #ifndef TYPE_INTEGRAL
 218 #define TYPE_INTEGRAL(type) (((type) 0.5) != 0.5)
 219 #endif /* !defined TYPE_INTEGRAL */
 220
 221 #ifndef INT_STRLEN_MAXIMUM
 222 /*
 223 ** 302 / 1000 is log10(2.0) rounded up.
 224 ** Subtract one for the sign bit if the type is signed;
 225 ** add one for integer division truncation;
 226 ** add one more for a minus sign if the type is signed.
 227 */
 228 #define INT_STRLEN_MAXIMUM(type) \
 229         ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \
 230         1 + TYPE_SIGNED(type))
 231 #endif /* !defined INT_STRLEN_MAXIMUM */
 232
 233 /*
 234 ** INITIALIZE(x)
 235 */
 236
 237 #ifndef GNUC_or_lint
 238 #ifdef lint
 239 #define GNUC_or_lint
 240 #endif /* defined lint */
 241 #ifndef lint
 242 #ifdef __GNUC__
 243 #define GNUC_or_lint
 244 #endif /* defined __GNUC__ */
 245 #endif /* !defined lint */
 246 #endif /* !defined GNUC_or_lint */
 247
 248 #ifndef INITIALIZE
 249 #ifdef GNUC_or_lint
 250 #define INITIALIZE(x)   ((x) = 0)
 251 #endif /* defined GNUC_or_lint */
 252 #ifndef GNUC_or_lint
 253 #define INITIALIZE(x)
 254 #endif /* !defined GNUC_or_lint */
 255 #endif /* !defined INITIALIZE */
 256
 257 /*
 258 ** For the benefit of GNU folk...
 259 ** `_(MSGID)' uses the current locale's message library string for MSGID.
 260 ** The default is to use gettext if available, and use MSGID otherwise.
 261 */
 262
 263 #ifndef _
 264 #if HAVE_GETTEXT
 265 #define _(msgid) gettext(msgid)
 266 #else /* !(HAVE_GETTEXT) */
 267 #define _(msgid) msgid
 268 #endif /* !(HAVE_GETTEXT) */
 269 #endif /* !defined _ */
 270
 271 #ifndef TZ_DOMAIN
 272 #define TZ_DOMAIN "tz"
 273 #endif /* !defined TZ_DOMAIN */
 274
 275 #if HAVE_INCOMPATIBLE_CTIME_R
 276 #undef asctime_r
 277 #undef ctime_r
 278 char *asctime_r(struct tm const *, char *);
 279 char *ctime_r(time_t const *, char *);
 280 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
 281
 282 #ifndef YEARSPERREPEAT
 283 #define YEARSPERREPEAT          400     /* years before a Gregorian repeat */
 284 #endif /* !defined YEARSPERREPEAT */
 285
 286 /*
 287 ** The Gregorian year averages 365.2425 days, which is 31556952 seconds.
 288 */
 289
 290 #ifndef AVGSECSPERYEAR
 291 #define AVGSECSPERYEAR          31556952L
 292 #endif /* !defined AVGSECSPERYEAR */
 293
 294 #ifndef SECSPERREPEAT
 295 #define SECSPERREPEAT           ((int_fast64_t) YEARSPERREPEAT * (int_fast64_t) AVGSECSPERYEAR)
 296 #endif /* !defined SECSPERREPEAT */
 297
 298 #ifndef SECSPERREPEAT_BITS
 299 #define SECSPERREPEAT_BITS      34      /* ceil(log2(SECSPERREPEAT)) */
 300 #endif /* !defined SECSPERREPEAT_BITS */
 301
 302 /*
 303 ** UNIX was a registered trademark of The Open Group in 2003.
 304 */
 305
 306 #endif /* !defined PRIVATE_H */