1 /* $NetBSD: private.h,v 1.33 2014/05/13 16:33:56 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_LINK 50 #define HAVE_LINK 1 51 #endif /* !defined HAVE_LINK */ 52 53 #ifndef HAVE_SETTIMEOFDAY 54 #define HAVE_SETTIMEOFDAY 3 55 #endif /* !defined HAVE_SETTIMEOFDAY */ 56 57 #ifndef HAVE_SYMLINK 58 #define HAVE_SYMLINK 1 59 #endif /* !defined HAVE_SYMLINK */ 60 61 #ifndef HAVE_SYS_STAT_H 62 #define HAVE_SYS_STAT_H 1 63 #endif /* !defined HAVE_SYS_STAT_H */ 64 65 #ifndef HAVE_SYS_WAIT_H 66 #define HAVE_SYS_WAIT_H 1 67 #endif /* !defined HAVE_SYS_WAIT_H */ 68 69 #ifndef HAVE_UNISTD_H 70 #define HAVE_UNISTD_H 1 71 #endif /* !defined HAVE_UNISTD_H */ 72 73 #ifndef HAVE_UTMPX_H 74 #define HAVE_UTMPX_H 0 75 #endif /* !defined HAVE_UTMPX_H */ 76 77 #ifdef LOCALE_HOME 78 #undef LOCALE_HOME /* not to be handled by tzcode itself */ 79 #endif /* defined LOCALE_HOME */ 80 81 #if HAVE_INCOMPATIBLE_CTIME_R 82 #define asctime_r _incompatible_asctime_r 83 #define ctime_r _incompatible_ctime_r 84 #endif /* HAVE_INCOMPATIBLE_CTIME_R */ 85 86 /* 87 ** Nested includes 88 */ 89 90 #include "sys/types.h" /* for time_t */ 91 #include "stdio.h" 92 #include "errno.h" 93 #include "string.h" 94 #include "limits.h" /* for CHAR_BIT et al. */ 95 #include "time.h" 96 #include "stdlib.h" 97 98 #if HAVE_GETTEXT 99 #include "libintl.h" 100 #endif /* HAVE_GETTEXT */ 101 102 #if HAVE_SYS_WAIT_H 103 #include <sys/wait.h> /* for WIFEXITED and WEXITSTATUS */ 104 #endif /* HAVE_SYS_WAIT_H */ 105 106 #ifndef WIFEXITED 107 #define WIFEXITED(status) (((status) & 0xff) == 0) 108 #endif /* !defined WIFEXITED */ 109 #ifndef WEXITSTATUS 110 #define WEXITSTATUS(status) (((status) >> 8) & 0xff) 111 #endif /* !defined WEXITSTATUS */ 112 113 #if HAVE_UNISTD_H 114 #include "unistd.h" /* for F_OK, R_OK, and other POSIX goodness */ 115 #endif /* HAVE_UNISTD_H */ 116 117 #ifndef F_OK 118 #define F_OK 0 119 #endif /* !defined F_OK */ 120 #ifndef R_OK 121 #define R_OK 4 122 #endif /* !defined R_OK */ 123 124 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */ 125 #define is_digit(c) ((unsigned)(c) - '0' <= 9) 126 127 /* 128 ** Define HAVE_STDINT_H's default value here, rather than at the 129 ** start, since __GLIBC__'s value depends on previously-included 130 ** files. 131 ** (glibc 2.1 and later have stdint.h, even with pre-C99 compilers.) 132 */ 133 #ifndef HAVE_STDINT_H 134 #define HAVE_STDINT_H \ 135 (199901 <= __STDC_VERSION__ \ 136 || 2 < __GLIBC__ + (1 <= __GLIBC_MINOR__) \ 137 || __CYGWIN__) 138 #endif /* !defined HAVE_STDINT_H */ 139 140 #if HAVE_STDINT_H 141 #include "stdint.h" 142 #endif /* !HAVE_STDINT_H */ 143 144 #ifndef HAVE_INTTYPES_H 145 # define HAVE_INTTYPES_H HAVE_STDINT_H 146 #endif 147 #if HAVE_INTTYPES_H 148 # include <inttypes.h> 149 #endif 150 151 #ifndef INT_FAST64_MAX 152 /* Pre-C99 GCC compilers define __LONG_LONG_MAX__ instead of LLONG_MAX. */ 153 #if defined LLONG_MAX || defined __LONG_LONG_MAX__ 154 typedef long long int_fast64_t; 155 # ifdef LLONG_MAX 156 # define INT_FAST64_MIN LLONG_MIN 157 # define INT_FAST64_MAX LLONG_MAX 158 # else 159 # define INT_FAST64_MIN __LONG_LONG_MIN__ 160 # define INT_FAST64_MAX __LONG_LONG_MAX__ 161 # endif 162 # define SCNdFAST64 "lld" 163 #else /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */ 164 #if (LONG_MAX >> 31) < 0xffffffff 165 Please use a compiler that supports a 64-bit integer type (or wider); 166 you may need to compile with "-DHAVE_STDINT_H". 167 #endif /* (LONG_MAX >> 31) < 0xffffffff */ 168 typedef long int_fast64_t; 169 # define INT_FAST64_MIN LONG_MIN 170 # define INT_FAST64_MAX LONG_MAX 171 # define SCNdFAST64 "ld" 172 #endif /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */ 173 #endif /* !defined INT_FAST64_MAX */ 174 175 #ifndef INT_FAST32_MAX 176 # if INT_MAX >> 31 == 0 177 typedef long int_fast32_t; 178 # else 179 typedef int int_fast32_t; 180 # endif 181 #endif 182 183 #ifndef INTMAX_MAX 184 # if defined LLONG_MAX || defined __LONG_LONG_MAX__ 185 typedef long long intmax_t; 186 # define strtoimax strtoll 187 # define PRIdMAX "lld" 188 # ifdef LLONG_MAX 189 # define INTMAX_MAX LLONG_MAX 190 # define INTMAX_MIN LLONG_MIN 191 # else 192 # define INTMAX_MAX __LONG_LONG_MAX__ 193 # define INTMAX_MIN __LONG_LONG_MIN__ 194 # endif 195 # else 196 typedef long intmax_t; 197 # define strtoimax strtol 198 # define PRIdMAX "ld" 199 # define INTMAX_MAX LONG_MAX 200 # define INTMAX_MIN LONG_MIN 201 # endif 202 #endif 203 204 #ifndef UINTMAX_MAX 205 # if defined ULLONG_MAX || defined __LONG_LONG_MAX__ 206 typedef unsigned long long uintmax_t; 207 # define PRIuMAX "llu" 208 # else 209 typedef unsigned long uintmax_t; 210 # define PRIuMAX "lu" 211 # endif 212 #endif 213 214 #ifndef INT32_MAX 215 #define INT32_MAX 0x7fffffff 216 #endif /* !defined INT32_MAX */ 217 #ifndef INT32_MIN 218 #define INT32_MIN (-1 - INT32_MAX) 219 #endif /* !defined INT32_MIN */ 220 221 #ifndef SIZE_MAX 222 #define SIZE_MAX ((size_t) -1) 223 #endif 224 225 #if 2 < __GNUC__ + (96 <= __GNUC_MINOR__) 226 # define ATTRIBUTE_CONST __attribute__ ((__const__)) 227 # define ATTRIBUTE_PURE __attribute__ ((__pure__)) 228 # define ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec)) 229 #else 230 # define ATTRIBUTE_CONST /* empty */ 231 # define ATTRIBUTE_PURE /* empty */ 232 # define ATTRIBUTE_FORMAT(spec) /* empty */ 233 #endif 234 235 #if !defined _Noreturn && __STDC_VERSION__ < 201112 236 # if 2 < __GNUC__ + (8 <= __GNUC_MINOR__) 237 # define _Noreturn __attribute__ ((__noreturn__)) 238 # else 239 # define _Noreturn 240 # endif 241 #endif 242 243 #if __STDC_VERSION__ < 199901 && !defined restrict 244 # define restrict /* empty */ 245 #endif 246 247 /* 248 ** Workarounds for compilers/systems. 249 */ 250 251 /* 252 ** Some time.h implementations don't declare asctime_r. 253 ** Others might define it as a macro. 254 ** Fix the former without affecting the latter. 255 */ 256 257 #ifndef asctime_r 258 extern char * asctime_r(struct tm const *, char *); 259 #endif 260 261 /* 262 ** Compile with -Dtime_tz=T to build the tz package with a private 263 ** time_t type equivalent to T rather than the system-supplied time_t. 264 ** This debugging feature can test unusual design decisions 265 ** (e.g., time_t wider than 'long', or unsigned time_t) even on 266 ** typical platforms. 267 */ 268 #ifdef time_tz 269 static time_t sys_time(time_t *x) { return time(x); } 270 271 # undef ctime 272 # define ctime tz_ctime 273 # undef ctime_r 274 # define ctime_r tz_ctime_r 275 # undef difftime 276 # define difftime tz_difftime 277 # undef gmtime 278 # define gmtime tz_gmtime 279 # undef gmtime_r 280 # define gmtime_r tz_gmtime_r 281 # undef localtime 282 # define localtime tz_localtime 283 # undef localtime_r 284 # define localtime_r tz_localtime_r 285 # undef mktime 286 # define mktime tz_mktime 287 # undef time 288 # define time tz_time 289 # undef time_t 290 # define time_t tz_time_t 291 292 typedef time_tz time_t; 293 294 char *ctime(time_t const *); 295 char *ctime_r(time_t const *, char *); 296 double difftime(time_t, time_t); 297 struct tm *gmtime(time_t const *); 298 struct tm *gmtime_r(time_t const *restrict, struct tm *restrict); 299 struct tm *localtime(time_t const *); 300 struct tm *localtime_r(time_t const *restrict, struct tm *restrict); 301 time_t mktime(struct tm *); 302 303 static time_t 304 time(time_t *p) 305 { 306 time_t r = sys_time(0); 307 if (p) 308 *p = r; 309 return r; 310 } 311 #endif 312 313 /* 314 ** Private function declarations. 315 */ 316 317 char * icatalloc(char * old, const char * new); 318 char * icpyalloc(const char * string); 319 const char * scheck(const char * string, const char * format); 320 321 /* 322 ** Finally, some convenience items. 323 */ 324 325 #ifndef TRUE 326 #define TRUE 1 327 #endif /* !defined TRUE */ 328 329 #ifndef FALSE 330 #define FALSE 0 331 #endif /* !defined FALSE */ 332 333 #ifndef TYPE_BIT 334 #define TYPE_BIT(type) (sizeof (type) * CHAR_BIT) 335 #endif /* !defined TYPE_BIT */ 336 337 #ifndef TYPE_SIGNED 338 #define TYPE_SIGNED(type) (/*CONSTCOND*/((type) -1) < 0) 339 #endif /* !defined TYPE_SIGNED */ 340 341 #ifndef INT_STRLEN_MAXIMUM 342 /* 343 ** 302 / 1000 is log10(2.0) rounded up. 344 ** Subtract one for the sign bit if the type is signed; 345 ** add one for integer division truncation; 346 ** add one more for a minus sign if the type is signed. 347 */ 348 #define INT_STRLEN_MAXIMUM(type) \ 349 ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \ 350 1 + TYPE_SIGNED(type)) 351 #endif /* !defined INT_STRLEN_MAXIMUM */ 352 353 /* 354 ** INITIALIZE(x) 355 */ 356 357 #ifndef GNUC_or_lint 358 #ifdef lint 359 #define GNUC_or_lint 360 #endif /* defined lint */ 361 #ifndef lint 362 #ifdef __GNUC__ 363 #define GNUC_or_lint 364 #endif /* defined __GNUC__ */ 365 #endif /* !defined lint */ 366 #endif /* !defined GNUC_or_lint */ 367 368 #ifndef INITIALIZE 369 #ifdef GNUC_or_lint 370 #define INITIALIZE(x) ((x) = 0) 371 #endif /* defined GNUC_or_lint */ 372 #ifndef GNUC_or_lint 373 #define INITIALIZE(x) 374 #endif /* !defined GNUC_or_lint */ 375 #endif /* !defined INITIALIZE */ 376 377 /* 378 ** For the benefit of GNU folk... 379 ** `_(MSGID)' uses the current locale's message library string for MSGID. 380 ** The default is to use gettext if available, and use MSGID otherwise. 381 */ 382 383 #ifndef _ 384 #if HAVE_GETTEXT 385 #define _(msgid) gettext(msgid) 386 #else /* !HAVE_GETTEXT */ 387 #define _(msgid) msgid 388 #endif /* !HAVE_GETTEXT */ 389 #endif /* !defined _ */ 390 391 #ifndef TZ_DOMAIN 392 #define TZ_DOMAIN "tz" 393 #endif /* !defined TZ_DOMAIN */ 394 395 #if HAVE_INCOMPATIBLE_CTIME_R 396 #undef asctime_r 397 #undef ctime_r 398 char *asctime_r(struct tm const *, char *); 399 char *ctime_r(time_t const *, char *); 400 #endif /* HAVE_INCOMPATIBLE_CTIME_R */ 401 402 #ifndef YEARSPERREPEAT 403 #define YEARSPERREPEAT 400 /* years before a Gregorian repeat */ 404 #endif /* !defined YEARSPERREPEAT */ 405 406 /* 407 ** The Gregorian year averages 365.2425 days, which is 31556952 seconds. 408 */ 409 410 #ifndef AVGSECSPERYEAR 411 #define AVGSECSPERYEAR 31556952L 412 #endif /* !defined AVGSECSPERYEAR */ 413 414 #ifndef SECSPERREPEAT 415 #define SECSPERREPEAT ((int_fast64_t) YEARSPERREPEAT * (int_fast64_t) AVGSECSPERYEAR) 416 #endif /* !defined SECSPERREPEAT */ 417 418 #ifndef SECSPERREPEAT_BITS 419 #define SECSPERREPEAT_BITS 34 /* ceil(log2(SECSPERREPEAT)) */ 420 #endif /* !defined SECSPERREPEAT_BITS */ 421 422 /* 423 ** UNIX was a registered trademark of The Open Group in 2003. 424 */ 425 426 #endif /* !defined PRIVATE_H */ 427