commands/zoneinfo/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 #if __STDC__
 137 #define P(x)    x
 138 #else /* !__STDC__ */
 139 #define P(x)    ()
 140 #endif /* !__STDC__ */
 141 #endif /* !defined P */
 142
 143 /*
 144 ** SunOS 4.1.1 headers lack EXIT_SUCCESS.
 145 */
 146
 147 #ifndef EXIT_SUCCESS
 148 #define EXIT_SUCCESS    0
 149 #endif /* !defined EXIT_SUCCESS */
 150
 151 /*
 152 ** SunOS 4.1.1 headers lack EXIT_FAILURE.
 153 */
 154
 155 #ifndef EXIT_FAILURE
 156 #define EXIT_FAILURE    1
 157 #endif /* !defined EXIT_FAILURE */
 158
 159 /*
 160 ** SunOS 4.1.1 headers lack FILENAME_MAX.
 161 */
 162
 163 #ifndef FILENAME_MAX
 164
 165 #ifndef MAXPATHLEN
 166 #ifdef unix
 167 #include "sys/param.h"
 168 #endif /* defined unix */
 169 #endif /* !defined MAXPATHLEN */
 170
 171 #ifdef MAXPATHLEN
 172 #define FILENAME_MAX    MAXPATHLEN
 173 #endif /* defined MAXPATHLEN */
 174 #ifndef MAXPATHLEN
 175 #define FILENAME_MAX    1024            /* Pure guesswork */
 176 #endif /* !defined MAXPATHLEN */
 177
 178 #endif /* !defined FILENAME_MAX */
 179
 180 /*
 181 ** SunOS 4.1.1 libraries lack remove.
 182 */
 183
 184 #ifndef remove
 185 extern int      unlink P((const char * filename));
 186 #define remove  unlink
 187 #endif /* !defined remove */
 188
 189 /*
 190 ** Some ancient errno.h implementations don't declare errno.
 191 ** But some newer errno.h implementations define it as a macro.
 192 ** Fix the former without affecting the latter.
 193 */
 194
 195 #ifndef errno
 196 extern int errno;
 197 #endif /* !defined errno */
 198
 199 /*
 200 ** Some time.h implementations don't declare asctime_r.
 201 ** Others might define it as a macro.
 202 ** Fix the former without affecting the latter.
 203 */
 204
 205 #ifndef asctime_r
 206 extern char *   asctime_r();
 207 #endif
 208
 209 /*
 210 ** Private function declarations.
 211 */
 212
 213 char *  icalloc P((int nelem, int elsize));
 214 char *  icatalloc P((char * old, const char * new));
 215 char *  icpyalloc P((const char * string));
 216 char *  imalloc P((int n));
 217 void *  irealloc P((void * pointer, int size));
 218 void    icfree P((char * pointer));
 219 void    ifree P((char * pointer));
 220 const char *scheck P((const char *string, const char *format));
 221
 222 /*
 223 ** Finally, some convenience items.
 224 */
 225
 226 #ifndef TRUE
 227 #define TRUE    1
 228 #endif /* !defined TRUE */
 229
 230 #ifndef FALSE
 231 #define FALSE   0
 232 #endif /* !defined FALSE */
 233
 234 #ifndef TYPE_BIT
 235 #define TYPE_BIT(type)  (sizeof (type) * CHAR_BIT)
 236 #endif /* !defined TYPE_BIT */
 237
 238 #ifndef TYPE_SIGNED
 239 #define TYPE_SIGNED(type) (((type) -1) < 0)
 240 #endif /* !defined TYPE_SIGNED */
 241
 242 /*
 243 ** Since the definition of TYPE_INTEGRAL contains floating point numbers,
 244 ** it cannot be used in preprocessor directives.
 245 */
 246
 247 #ifndef TYPE_INTEGRAL
 248 #define TYPE_INTEGRAL(type) (((type) 0.5) != 0.5)
 249 #endif /* !defined TYPE_INTEGRAL */
 250
 251 #ifndef INT_STRLEN_MAXIMUM
 252 /*
 253 ** 302 / 1000 is log10(2.0) rounded up.
 254 ** Subtract one for the sign bit if the type is signed;
 255 ** add one for integer division truncation;
 256 ** add one more for a minus sign if the type is signed.
 257 */
 258 #define INT_STRLEN_MAXIMUM(type) \
 259         ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \
 260         1 + TYPE_SIGNED(type))
 261 #endif /* !defined INT_STRLEN_MAXIMUM */
 262
 263 /*
 264 ** INITIALIZE(x)
 265 */
 266
 267 #ifndef GNUC_or_lint
 268 #ifdef lint
 269 #define GNUC_or_lint
 270 #endif /* defined lint */
 271 #ifndef lint
 272 #ifdef __GNUC__
 273 #define GNUC_or_lint
 274 #endif /* defined __GNUC__ */
 275 #endif /* !defined lint */
 276 #endif /* !defined GNUC_or_lint */
 277
 278 #ifndef INITIALIZE
 279 #ifdef GNUC_or_lint
 280 #define INITIALIZE(x)   ((x) = 0)
 281 #endif /* defined GNUC_or_lint */
 282 #ifndef GNUC_or_lint
 283 #define INITIALIZE(x)
 284 #endif /* !defined GNUC_or_lint */
 285 #endif /* !defined INITIALIZE */
 286
 287 /*
 288 ** For the benefit of GNU folk...
 289 ** `_(MSGID)' uses the current locale's message library string for MSGID.
 290 ** The default is to use gettext if available, and use MSGID otherwise.
 291 */
 292
 293 #ifndef _
 294 #if HAVE_GETTEXT
 295 #define _(msgid) gettext(msgid)
 296 #else /* !HAVE_GETTEXT */
 297 #define _(msgid) msgid
 298 #endif /* !HAVE_GETTEXT */
 299 #endif /* !defined _ */
 300
 301 #ifndef TZ_DOMAIN
 302 #define TZ_DOMAIN "tz"
 303 #endif /* !defined TZ_DOMAIN */
 304
 305 #if HAVE_INCOMPATIBLE_CTIME_R
 306 #undef asctime_r
 307 #undef ctime_r
 308 char *asctime_r P((struct tm const *, char *));
 309 char *ctime_r P((time_t const *, char *));
 310 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
 311
 312 /*
 313 ** UNIX was a registered trademark of The Open Group in 2003.
 314 */
 315
 316 #endif /* !defined PRIVATE_H */