1 /* $NetBSD: private.h,v 1.29 2013/07/17 20:13:04 christos Exp $ */ 2 3 #ifndef PRIVATE_H 4 #define PRIVATE_H 5 6 /* NetBSD defaults */ 7 #define TM_GMTOFF tm_gmtoff 8 #define TM_ZONE tm_zone 9 #define STD_INSPIRED 1 10 #define HAVE_LONG_DOUBLE 1 11 12 /* For when we build zic as a host tool. */ 13 #if HAVE_NBTOOL_CONFIG_H 14 #include "nbtool_config.h" 15 #endif 16 17 /* 18 ** This file is in the public domain, so clarified as of 19 ** 1996-06-05 by Arthur David Olson. 20 */ 21 22 /* 23 ** This header is for use ONLY with the time conversion code. 24 ** There is no guarantee that it will remain unchanged, 25 ** or that it will remain at all. 26 ** Do NOT copy it to any system include directory. 27 ** Thank you! 28 */ 29 30 #define GRANDPARENTED "Local time zone must be set--see zic manual page" 31 32 /* 33 ** Defaults for preprocessor symbols. 34 ** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'. 35 */ 36 37 #ifndef HAVE_ADJTIME 38 #define HAVE_ADJTIME 1 39 #endif /* !defined HAVE_ADJTIME */ 40 41 #ifndef HAVE_GETTEXT 42 #define HAVE_GETTEXT 0 43 #endif /* !defined HAVE_GETTEXT */ 44 45 #ifndef HAVE_INCOMPATIBLE_CTIME_R 46 #define HAVE_INCOMPATIBLE_CTIME_R 0 47 #endif /* !defined INCOMPATIBLE_CTIME_R */ 48 49 #ifndef HAVE_SETTIMEOFDAY 50 #define HAVE_SETTIMEOFDAY 3 51 #endif /* !defined HAVE_SETTIMEOFDAY */ 52 53 #ifndef HAVE_SYMLINK 54 #define HAVE_SYMLINK 1 55 #endif /* !defined HAVE_SYMLINK */ 56 57 #ifndef HAVE_SYS_STAT_H 58 #define HAVE_SYS_STAT_H 1 59 #endif /* !defined HAVE_SYS_STAT_H */ 60 61 #ifndef HAVE_SYS_WAIT_H 62 #define HAVE_SYS_WAIT_H 1 63 #endif /* !defined HAVE_SYS_WAIT_H */ 64 65 #ifndef HAVE_UNISTD_H 66 #define HAVE_UNISTD_H 1 67 #endif /* !defined HAVE_UNISTD_H */ 68 69 #ifndef HAVE_UTMPX_H 70 #define HAVE_UTMPX_H 0 71 #endif /* !defined HAVE_UTMPX_H */ 72 73 #ifdef LOCALE_HOME 74 #undef LOCALE_HOME /* not to be handled by tzcode itself */ 75 #endif /* defined LOCALE_HOME */ 76 77 #if HAVE_INCOMPATIBLE_CTIME_R 78 #define asctime_r _incompatible_asctime_r 79 #define ctime_r _incompatible_ctime_r 80 #endif /* HAVE_INCOMPATIBLE_CTIME_R */ 81 82 /* 83 ** Nested includes 84 */ 85 86 #include "sys/types.h" /* for time_t */ 87 #include "stdio.h" 88 #include "errno.h" 89 #include "string.h" 90 #include "limits.h" /* for CHAR_BIT et al. */ 91 #include "time.h" 92 #include "stdlib.h" 93 94 #if HAVE_GETTEXT 95 #include "libintl.h" 96 #endif /* HAVE_GETTEXT */ 97 98 #if HAVE_SYS_WAIT_H 99 #include <sys/wait.h> /* for WIFEXITED and WEXITSTATUS */ 100 #endif /* HAVE_SYS_WAIT_H */ 101 102 #ifndef WIFEXITED 103 #define WIFEXITED(status) (((status) & 0xff) == 0) 104 #endif /* !defined WIFEXITED */ 105 #ifndef WEXITSTATUS 106 #define WEXITSTATUS(status) (((status) >> 8) & 0xff) 107 #endif /* !defined WEXITSTATUS */ 108 109 #if HAVE_UNISTD_H 110 #include "unistd.h" /* for F_OK, R_OK, and other POSIX goodness */ 111 #endif /* HAVE_UNISTD_H */ 112 113 #ifndef F_OK 114 #define F_OK 0 115 #endif /* !defined F_OK */ 116 #ifndef R_OK 117 #define R_OK 4 118 #endif /* !defined R_OK */ 119 120 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */ 121 #define is_digit(c) ((unsigned)(c) - '0' <= 9) 122 123 /* 124 ** Define HAVE_STDINT_H's default value here, rather than at the 125 ** start, since __GLIBC__'s value depends on previously-included 126 ** files. 127 ** (glibc 2.1 and later have stdint.h, even with pre-C99 compilers.) 128 */ 129 #ifndef HAVE_STDINT_H 130 #define HAVE_STDINT_H \ 131 (199901 <= __STDC_VERSION__ || \ 132 2 < (__GLIBC__ + (0 < __GLIBC_MINOR__))) 133 #endif /* !defined HAVE_STDINT_H */ 134 135 #if HAVE_STDINT_H 136 #include "stdint.h" 137 #endif /* !HAVE_STDINT_H */ 138 139 #ifndef HAVE_INTTYPES_H 140 # define HAVE_INTTYPES_H HAVE_STDINT_H 141 #endif 142 #if HAVE_INTTYPES_H 143 # include <inttypes.h> 144 #endif 145 146 #ifndef INT_FAST64_MAX 147 /* Pre-C99 GCC compilers define __LONG_LONG_MAX__ instead of LLONG_MAX. */ 148 #if defined LLONG_MAX || defined __LONG_LONG_MAX__ 149 typedef long long int_fast64_t; 150 # ifdef LLONG_MAX 151 # define INT_FAST64_MIN LLONG_MIN 152 # define INT_FAST64_MAX LLONG_MAX 153 # else 154 # define INT_FAST64_MIN __LONG_LONG_MIN__ 155 # define INT_FAST64_MAX __LONG_LONG_MAX__ 156 # endif 157 # define SCNdFAST64 "lld" 158 #else /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */ 159 #if (LONG_MAX >> 31) < 0xffffffff 160 Please use a compiler that supports a 64-bit integer type (or wider); 161 you may need to compile with "-DHAVE_STDINT_H". 162 #endif /* (LONG_MAX >> 31) < 0xffffffff */ 163 typedef long int_fast64_t; 164 # define INT_FAST64_MIN LONG_MIN 165 # define INT_FAST64_MAX LONG_MAX 166 # define SCNdFAST64 "ld" 167 #endif /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */ 168 #endif /* !defined INT_FAST64_MAX */ 169 170 #ifndef INT_FAST32_MAX 171 # if INT_MAX >> 31 == 0 172 typedef long int_fast32_t; 173 # else 174 typedef int int_fast32_t; 175 # endif 176 #endif 177 178 #ifndef INTMAX_MAX 179 # if defined LLONG_MAX || defined __LONG_LONG_MAX__ 180 typedef long long intmax_t; 181 # define PRIdMAX "lld" 182 # else 183 typedef long intmax_t; 184 # define PRIdMAX "ld" 185 # endif 186 #endif 187 188 #ifndef UINTMAX_MAX 189 # if defined ULLONG_MAX || defined __LONG_LONG_MAX__ 190 typedef unsigned long long uintmax_t; 191 # define PRIuMAX "llu" 192 # else 193 typedef unsigned long uintmax_t; 194 # define PRIuMAX "lu" 195 # endif 196 #endif 197 198 #ifndef INT32_MAX 199 #define INT32_MAX 0x7fffffff 200 #endif /* !defined INT32_MAX */ 201 #ifndef INT32_MIN 202 #define INT32_MIN (-1 - INT32_MAX) 203 #endif /* !defined INT32_MIN */ 204 205 #if 2 < __GNUC__ + (96 <= __GNUC_MINOR__) 206 # define ATTRIBUTE_CONST __attribute__ ((__const__)) 207 # define ATTRIBUTE_PURE __attribute__ ((__pure__)) 208 #else 209 # define ATTRIBUTE_CONST /* empty */ 210 # define ATTRIBUTE_PURE /* empty */ 211 #endif 212 213 #if !defined _Noreturn && __STDC_VERSION__ < 201112 214 # if 2 < __GNUC__ + (8 <= __GNUC_MINOR__) 215 # define _Noreturn __attribute__ ((__noreturn__)) 216 # else 217 # define _Noreturn 218 # endif 219 #endif 220 221 #if __STDC_VERSION__ < 199901 && !defined restrict 222 # define restrict /* empty */ 223 #endif 224 225 /* 226 ** Workarounds for compilers/systems. 227 */ 228 229 /* 230 ** Some time.h implementations don't declare asctime_r. 231 ** Others might define it as a macro. 232 ** Fix the former without affecting the latter. 233 */ 234 235 #ifndef asctime_r 236 extern char * asctime_r(struct tm const *, char *); 237 #endif 238 239 /* 240 ** Compile with -Dtime_tz=T to build the tz package with a private 241 ** time_t type equivalent to T rather than the system-supplied time_t. 242 ** This debugging feature can test unusual design decisions 243 ** (e.g., time_t wider than 'long', or unsigned time_t) even on 244 ** typical platforms. 245 */ 246 #ifdef time_tz 247 static time_t sys_time(time_t *x) { return time(x); } 248 249 # undef ctime 250 # define ctime tz_ctime 251 # undef ctime_r 252 # define ctime_r tz_ctime_r 253 # undef difftime 254 # define difftime tz_difftime 255 # undef gmtime 256 # define gmtime tz_gmtime 257 # undef gmtime_r 258 # define gmtime_r tz_gmtime_r 259 # undef localtime 260 # define localtime tz_localtime 261 # undef localtime_r 262 # define localtime_r tz_localtime_r 263 # undef mktime 264 # define mktime tz_mktime 265 # undef time 266 # define time tz_time 267 # undef time_t 268 # define time_t tz_time_t 269 270 typedef time_tz time_t; 271 272 char *ctime(time_t const *); 273 char *ctime_r(time_t const *, char *); 274 double difftime(time_t, time_t); 275 struct tm *gmtime(time_t const *); 276 struct tm *gmtime_r(time_t const *restrict, struct tm *restrict); 277 struct tm *localtime(time_t const *); 278 struct tm *localtime_r(time_t const *restrict, struct tm *restrict); 279 time_t mktime(struct tm *); 280 281 static time_t 282 time(time_t *p) 283 { 284 time_t r = sys_time(0); 285 if (p) 286 *p = r; 287 return r; 288 } 289 #endif 290 291 /* 292 ** Private function declarations. 293 */ 294 295 char * icatalloc(char * old, const char * new); 296 char * icpyalloc(const char * string); 297 const char * scheck(const char * string, const char * format); 298 299 /* 300 ** Finally, some convenience items. 301 */ 302 303 #ifndef TRUE 304 #define TRUE 1 305 #endif /* !defined TRUE */ 306 307 #ifndef FALSE 308 #define FALSE 0 309 #endif /* !defined FALSE */ 310 311 #ifndef TYPE_BIT 312 #define TYPE_BIT(type) (sizeof (type) * CHAR_BIT) 313 #endif /* !defined TYPE_BIT */ 314 315 #ifndef TYPE_SIGNED 316 #define TYPE_SIGNED(type) (/*CONSTCOND*/((type) -1) < 0) 317 #endif /* !defined TYPE_SIGNED */ 318 319 /* 320 ** Since the definition of TYPE_INTEGRAL contains floating point numbers, 321 ** it cannot be used in preprocessor directives. 322 */ 323 324 #ifndef TYPE_INTEGRAL 325 #define TYPE_INTEGRAL(type) (/*CONSTCOND*/((type) 0.5) != 0.5) 326 #endif /* !defined TYPE_INTEGRAL */ 327 328 #ifndef INT_STRLEN_MAXIMUM 329 /* 330 ** 302 / 1000 is log10(2.0) rounded up. 331 ** Subtract one for the sign bit if the type is signed; 332 ** add one for integer division truncation; 333 ** add one more for a minus sign if the type is signed. 334 */ 335 #define INT_STRLEN_MAXIMUM(type) \ 336 ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \ 337 1 + TYPE_SIGNED(type)) 338 #endif /* !defined INT_STRLEN_MAXIMUM */ 339 340 /* 341 ** INITIALIZE(x) 342 */ 343 344 #ifndef GNUC_or_lint 345 #ifdef lint 346 #define GNUC_or_lint 347 #endif /* defined lint */ 348 #ifndef lint 349 #ifdef __GNUC__ 350 #define GNUC_or_lint 351 #endif /* defined __GNUC__ */ 352 #endif /* !defined lint */ 353 #endif /* !defined GNUC_or_lint */ 354 355 #ifndef INITIALIZE 356 #ifdef GNUC_or_lint 357 #define INITIALIZE(x) ((x) = 0) 358 #endif /* defined GNUC_or_lint */ 359 #ifndef GNUC_or_lint 360 #define INITIALIZE(x) 361 #endif /* !defined GNUC_or_lint */ 362 #endif /* !defined INITIALIZE */ 363 364 /* 365 ** For the benefit of GNU folk... 366 ** `_(MSGID)' uses the current locale's message library string for MSGID. 367 ** The default is to use gettext if available, and use MSGID otherwise. 368 */ 369 370 #ifndef _ 371 #if HAVE_GETTEXT 372 #define _(msgid) gettext(msgid) 373 #else /* !HAVE_GETTEXT */ 374 #define _(msgid) msgid 375 #endif /* !HAVE_GETTEXT */ 376 #endif /* !defined _ */ 377 378 #ifndef TZ_DOMAIN 379 #define TZ_DOMAIN "tz" 380 #endif /* !defined TZ_DOMAIN */ 381 382 #if HAVE_INCOMPATIBLE_CTIME_R 383 #undef asctime_r 384 #undef ctime_r 385 char *asctime_r(struct tm const *, char *); 386 char *ctime_r(time_t const *, char *); 387 #endif /* HAVE_INCOMPATIBLE_CTIME_R */ 388 389 #ifndef YEARSPERREPEAT 390 #define YEARSPERREPEAT 400 /* years before a Gregorian repeat */ 391 #endif /* !defined YEARSPERREPEAT */ 392 393 /* 394 ** The Gregorian year averages 365.2425 days, which is 31556952 seconds. 395 */ 396 397 #ifndef AVGSECSPERYEAR 398 #define AVGSECSPERYEAR 31556952L 399 #endif /* !defined AVGSECSPERYEAR */ 400 401 #ifndef SECSPERREPEAT 402 #define SECSPERREPEAT ((int_fast64_t) YEARSPERREPEAT * (int_fast64_t) AVGSECSPERYEAR) 403 #endif /* !defined SECSPERREPEAT */ 404 405 #ifndef SECSPERREPEAT_BITS 406 #define SECSPERREPEAT_BITS 34 /* ceil(log2(SECSPERREPEAT)) */ 407 #endif /* !defined SECSPERREPEAT_BITS */ 408 409 /* 410 ** UNIX was a registered trademark of The Open Group in 2003. 411 */ 412 413 #endif /* !defined PRIVATE_H */ 414