timezone/private.h

   1 #ifndef PRIVATE_H
   2
   3 #define PRIVATE_H
   4
   5 /*
   6 ** This file is in the public domain, so clarified as of
   7 ** 1996-06-05 by Arthur David Olson.
   8 */
   9
  10 /*
  11 ** This header is for use ONLY with the time conversion code.
  12 ** There is no guarantee that it will remain unchanged,
  13 ** or that it will remain at all.
  14 ** Do NOT copy it to any system include directory.
  15 ** Thank you!
  16 */
  17
  18 /*
  19 ** ID
  20 */
  21
  22 #ifndef lint
  23 #ifndef NOID
  24 static char     privatehid[] = "@(#)private.h   7.55";
  25 #endif /* !defined NOID */
  26 #endif /* !defined lint */
  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_ADJTIME
  36 #define HAVE_ADJTIME            1
  37 #endif /* !defined HAVE_ADJTIME */
  38
  39 #ifndef HAVE_GETTEXT
  40 #define HAVE_GETTEXT            0
  41 #endif /* !defined HAVE_GETTEXT */
  42
  43 #ifndef HAVE_INCOMPATIBLE_CTIME_R
  44 #define HAVE_INCOMPATIBLE_CTIME_R       0
  45 #endif /* !defined INCOMPATIBLE_CTIME_R */
  46
  47 #ifndef HAVE_SETTIMEOFDAY
  48 #define HAVE_SETTIMEOFDAY       3
  49 #endif /* !defined HAVE_SETTIMEOFDAY */
  50
  51 #ifndef HAVE_STRERROR
  52 #define HAVE_STRERROR           1
  53 #endif /* !defined HAVE_STRERROR */
  54
  55 #ifndef HAVE_SYMLINK
  56 #define HAVE_SYMLINK            1
  57 #endif /* !defined HAVE_SYMLINK */
  58
  59 #ifndef HAVE_SYS_STAT_H
  60 #define HAVE_SYS_STAT_H         1
  61 #endif /* !defined HAVE_SYS_STAT_H */
  62
  63 #ifndef HAVE_SYS_WAIT_H
  64 #define HAVE_SYS_WAIT_H         1
  65 #endif /* !defined HAVE_SYS_WAIT_H */
  66
  67 #ifndef HAVE_UNISTD_H
  68 #define HAVE_UNISTD_H           1
  69 #endif /* !defined HAVE_UNISTD_H */
  70
  71 #ifndef HAVE_UTMPX_H
  72 #define HAVE_UTMPX_H            0
  73 #endif /* !defined HAVE_UTMPX_H */
  74
  75 #ifndef LOCALE_HOME
  76 #define LOCALE_HOME             "/usr/lib/locale"
  77 #endif /* !defined LOCALE_HOME */
  78
  79 #if HAVE_INCOMPATIBLE_CTIME_R
  80 #define asctime_r _incompatible_asctime_r
  81 #define ctime_r _incompatible_ctime_r
  82 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
  83
  84 /*
  85 ** Nested includes
  86 */
  87
  88 #include "sys/types.h"  /* for time_t */
  89 #include "stdio.h"
  90 #include "errno.h"
  91 #include "string.h"
  92 #include "limits.h"     /* for CHAR_BIT */
  93 #include "time.h"
  94 #include "stdlib.h"
  95
  96 #if HAVE_GETTEXT
  97 #include "libintl.h"
  98 #endif /* HAVE_GETTEXT */
  99
 100 #if HAVE_SYS_WAIT_H
 101 #include <sys/wait.h>   /* for WIFEXITED and WEXITSTATUS */
 102 #endif /* HAVE_SYS_WAIT_H */
 103
 104 #ifndef WIFEXITED
 105 #define WIFEXITED(status)       (((status) & 0xff) == 0)
 106 #endif /* !defined WIFEXITED */
 107 #ifndef WEXITSTATUS
 108 #define WEXITSTATUS(status)     (((status) >> 8) & 0xff)
 109 #endif /* !defined WEXITSTATUS */
 110
 111 #if HAVE_UNISTD_H
 112 #include "unistd.h"     /* for F_OK and R_OK */
 113 #endif /* HAVE_UNISTD_H */
 114
 115 #if !HAVE_UNISTD_H
 116 #ifndef F_OK
 117 #define F_OK    0
 118 #endif /* !defined F_OK */
 119 #ifndef R_OK
 120 #define R_OK    4
 121 #endif /* !defined R_OK */
 122 #endif /* !HAVE_UNISTD_H */
 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 ** Workarounds for compilers/systems.
 129 */
 130
 131 /*
 132 ** SunOS 4.1.1 cc lacks prototypes.
 133 */
 134
 135 #ifndef P
 136 #ifdef __STDC__
 137 #define P(x)    x
 138 #endif /* defined __STDC__ */
 139 #ifndef __STDC__
 140 #define P(x)    ()
 141 #endif /* !defined __STDC__ */
 142 #endif /* !defined P */
 143
 144 /*
 145 ** SunOS 4.1.1 headers lack EXIT_SUCCESS.
 146 */
 147
 148 #ifndef EXIT_SUCCESS
 149 #define EXIT_SUCCESS    0
 150 #endif /* !defined EXIT_SUCCESS */
 151
 152 /*
 153 ** SunOS 4.1.1 headers lack EXIT_FAILURE.
 154 */
 155
 156 #ifndef EXIT_FAILURE
 157 #define EXIT_FAILURE    1
 158 #endif /* !defined EXIT_FAILURE */
 159
 160 /*
 161 ** SunOS 4.1.1 headers lack FILENAME_MAX.
 162 */
 163
 164 #ifndef FILENAME_MAX
 165
 166 #ifndef MAXPATHLEN
 167 #ifdef unix
 168 #include "sys/param.h"
 169 #endif /* defined unix */
 170 #endif /* !defined MAXPATHLEN */
 171
 172 #ifdef MAXPATHLEN
 173 #define FILENAME_MAX    MAXPATHLEN
 174 #endif /* defined MAXPATHLEN */
 175 #ifndef MAXPATHLEN
 176 #define FILENAME_MAX    1024            /* Pure guesswork */
 177 #endif /* !defined MAXPATHLEN */
 178
 179 #endif /* !defined FILENAME_MAX */
 180
 181 /*
 182 ** SunOS 4.1.1 libraries lack remove.
 183 */
 184
 185 #ifndef remove
 186 extern int      unlink P((const char * filename));
 187 #define remove  unlink
 188 #endif /* !defined remove */
 189
 190 /*
 191 ** Some ancient errno.h implementations don't declare errno.
 192 ** But some newer errno.h implementations define it as a macro.
 193 ** Fix the former without affecting the latter.
 194 */
 195
 196 #ifndef errno
 197 extern int errno;
 198 #endif /* !defined errno */
 199
 200 /*
 201 ** Some time.h implementations don't declare asctime_r.
 202 ** Others might define it as a macro.
 203 ** Fix the former without affecting the latter.
 204 */
 205
 206 #ifndef asctime_r
 207 extern char *   asctime_r();
 208 #endif
 209
 210 /*
 211 ** Private function declarations.
 212 */
 213
 214 char *  icalloc P((int nelem, int elsize));
 215 char *  icatalloc P((char * old, const char * new));
 216 char *  icpyalloc P((const char * string));
 217 char *  imalloc P((int n));
 218 void *  irealloc P((void * pointer, int size));
 219 void    icfree P((char * pointer));
 220 void    ifree P((char * pointer));
 221 const char *scheck P((const char *string, const char *format));
 222
 223 /*
 224 ** Finally, some convenience items.
 225 */
 226
 227 #ifndef TRUE
 228 #define TRUE    1
 229 #endif /* !defined TRUE */
 230
 231 #ifndef FALSE
 232 #define FALSE   0
 233 #endif /* !defined FALSE */
 234
 235 #ifndef TYPE_BIT
 236 #define TYPE_BIT(type)  (sizeof (type) * CHAR_BIT)
 237 #endif /* !defined TYPE_BIT */
 238
 239 #ifndef TYPE_SIGNED
 240 #define TYPE_SIGNED(type) (((type) -1) < 0)
 241 #endif /* !defined TYPE_SIGNED */
 242
 243 /*
 244 ** Since the definition of TYPE_INTEGRAL contains floating point numbers,
 245 ** it cannot be used in preprocessor directives.
 246 */
 247
 248 #ifndef TYPE_INTEGRAL
 249 #define TYPE_INTEGRAL(type) (((type) 0.5) != 0.5)
 250 #endif /* !defined TYPE_INTEGRAL */
 251
 252 #ifndef INT_STRLEN_MAXIMUM
 253 /*
 254 ** 302 / 1000 is log10(2.0) rounded up.
 255 ** Subtract one for the sign bit if the type is signed;
 256 ** add one for integer division truncation;
 257 ** add one more for a minus sign if the type is signed.
 258 */
 259 #define INT_STRLEN_MAXIMUM(type) \
 260         ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \
 261         1 + TYPE_SIGNED(type))
 262 #endif /* !defined INT_STRLEN_MAXIMUM */
 263
 264 /*
 265 ** INITIALIZE(x)
 266 */
 267
 268 #ifndef GNUC_or_lint
 269 #ifdef lint
 270 #define GNUC_or_lint
 271 #endif /* defined lint */
 272 #ifndef lint
 273 #ifdef __GNUC__
 274 #define GNUC_or_lint
 275 #endif /* defined __GNUC__ */
 276 #endif /* !defined lint */
 277 #endif /* !defined GNUC_or_lint */
 278
 279 #ifndef INITIALIZE
 280 #ifdef GNUC_or_lint
 281 #define INITIALIZE(x)   ((x) = 0)
 282 #endif /* defined GNUC_or_lint */
 283 #ifndef GNUC_or_lint
 284 #define INITIALIZE(x)
 285 #endif /* !defined GNUC_or_lint */
 286 #endif /* !defined INITIALIZE */
 287
 288 /*
 289 ** For the benefit of GNU folk...
 290 ** `_(MSGID)' uses the current locale's message library string for MSGID.
 291 ** The default is to use gettext if available, and use MSGID otherwise.
 292 */
 293
 294 #ifndef _
 295 #if HAVE_GETTEXT
 296 #define _(msgid) gettext(msgid)
 297 #else /* !HAVE_GETTEXT */
 298 #define _(msgid) msgid
 299 #endif /* !HAVE_GETTEXT */
 300 #endif /* !defined _ */
 301
 302 #ifndef TZ_DOMAIN
 303 #define TZ_DOMAIN "tz"
 304 #endif /* !defined TZ_DOMAIN */
 305
 306 #if HAVE_INCOMPATIBLE_CTIME_R
 307 #undef asctime_r
 308 #undef ctime_r
 309 char *asctime_r P((struct tm const *, char *));
 310 char *ctime_r P((time_t const *, char *));
 311 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
 312
 313 /*
 314 ** UNIX was a registered trademark of The Open Group in 2003.
 315 */
 316
 317 #endif /* !defined PRIVATE_H */