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 void logwtmp(char *, char *, char *);
  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 */
  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 and R_OK */
 115 #endif /* HAVE_UNISTD_H */
 116
 117 #if !HAVE_UNISTD_H
 118 #ifndef F_OK
 119 #define F_OK    0
 120 #endif /* !defined F_OK */
 121 #ifndef R_OK
 122 #define R_OK    4
 123 #endif /* !defined R_OK */
 124 #endif /* !HAVE_UNISTD_H */
 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 ** Workarounds for compilers/systems.
 131 */
 132
 133 /*
 134 ** SunOS 4.1.1 cc lacks prototypes.
 135 */
 136
 137 #ifndef P
 138 #if __STDC__
 139 #define P(x)    x
 140 #else /* !__STDC__ */
 141 #define P(x)    ()
 142 #endif /* !__STDC__ */
 143 #endif /* !defined P */
 144
 145 /*
 146 ** SunOS 4.1.1 headers lack EXIT_SUCCESS.
 147 */
 148
 149 #ifndef EXIT_SUCCESS
 150 #define EXIT_SUCCESS    0
 151 #endif /* !defined EXIT_SUCCESS */
 152
 153 /*
 154 ** SunOS 4.1.1 headers lack EXIT_FAILURE.
 155 */
 156
 157 #ifndef EXIT_FAILURE
 158 #define EXIT_FAILURE    1
 159 #endif /* !defined EXIT_FAILURE */
 160
 161 /*
 162 ** SunOS 4.1.1 headers lack FILENAME_MAX.
 163 */
 164
 165 #ifndef FILENAME_MAX
 166
 167 #ifndef MAXPATHLEN
 168 #ifdef unix
 169 #include "sys/param.h"
 170 #endif /* defined unix */
 171 #endif /* !defined MAXPATHLEN */
 172
 173 #ifdef MAXPATHLEN
 174 #define FILENAME_MAX    MAXPATHLEN
 175 #endif /* defined MAXPATHLEN */
 176 #ifndef MAXPATHLEN
 177 #define FILENAME_MAX    1024            /* Pure guesswork */
 178 #endif /* !defined MAXPATHLEN */
 179
 180 #endif /* !defined FILENAME_MAX */
 181
 182 /*
 183 ** SunOS 4.1.1 libraries lack remove.
 184 */
 185
 186 #ifndef remove
 187 extern int      unlink P((const char * filename));
 188 #define remove  unlink
 189 #endif /* !defined remove */
 190
 191 /*
 192 ** Some ancient errno.h implementations don't declare errno.
 193 ** But some newer errno.h implementations define it as a macro.
 194 ** Fix the former without affecting the latter.
 195 */
 196
 197 #ifndef errno
 198 extern int errno;
 199 #endif /* !defined errno */
 200
 201 /*
 202 ** Some time.h implementations don't declare asctime_r.
 203 ** Others might define it as a macro.
 204 ** Fix the former without affecting the latter.
 205 */
 206
 207 #ifndef asctime_r
 208 extern char *   asctime_r(register const struct tm *, char *);
 209 #endif
 210
 211 /*
 212 ** Private function declarations.
 213 */
 214
 215 char *  icalloc P((int nelem, int elsize));
 216 char *  icatalloc P((char * old, const char * new));
 217 char *  icpyalloc P((const char * string));
 218 char *  imalloc P((int n));
 219 void *  irealloc P((void * pointer, int size));
 220 void    icfree P((char * pointer));
 221 void    ifree P((char * pointer));
 222 const char *scheck P((const char *string, const char *format));
 223
 224 /*
 225 ** Finally, some convenience items.
 226 */
 227
 228 #ifndef TRUE
 229 #define TRUE    1
 230 #endif /* !defined TRUE */
 231
 232 #ifndef FALSE
 233 #define FALSE   0
 234 #endif /* !defined FALSE */
 235
 236 #ifndef TYPE_BIT
 237 #define TYPE_BIT(type)  (sizeof (type) * CHAR_BIT)
 238 #endif /* !defined TYPE_BIT */
 239
 240 #ifndef TYPE_SIGNED
 241 #define TYPE_SIGNED(type) (((type) -1) < 0)
 242 #endif /* !defined TYPE_SIGNED */
 243
 244 /*
 245 ** Since the definition of TYPE_INTEGRAL contains floating point numbers,
 246 ** it cannot be used in preprocessor directives.
 247 */
 248
 249 #ifndef TYPE_INTEGRAL
 250 #define TYPE_INTEGRAL(type) (((type) 0.5) != 0.5)
 251 #endif /* !defined TYPE_INTEGRAL */
 252
 253 #ifndef INT_STRLEN_MAXIMUM
 254 /*
 255 ** 302 / 1000 is log10(2.0) rounded up.
 256 ** Subtract one for the sign bit if the type is signed;
 257 ** add one for integer division truncation;
 258 ** add one more for a minus sign if the type is signed.
 259 */
 260 #define INT_STRLEN_MAXIMUM(type) \
 261         ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \
 262         1 + TYPE_SIGNED(type))
 263 #endif /* !defined INT_STRLEN_MAXIMUM */
 264
 265 /*
 266 ** INITIALIZE(x)
 267 */
 268
 269 #ifndef GNUC_or_lint
 270 #ifdef lint
 271 #define GNUC_or_lint
 272 #endif /* defined lint */
 273 #ifndef lint
 274 #ifdef __GNUC__
 275 #define GNUC_or_lint
 276 #endif /* defined __GNUC__ */
 277 #endif /* !defined lint */
 278 #endif /* !defined GNUC_or_lint */
 279
 280 #ifndef INITIALIZE
 281 #ifdef GNUC_or_lint
 282 #define INITIALIZE(x)   ((x) = 0)
 283 #endif /* defined GNUC_or_lint */
 284 #ifndef GNUC_or_lint
 285 #define INITIALIZE(x)
 286 #endif /* !defined GNUC_or_lint */
 287 #endif /* !defined INITIALIZE */
 288
 289 /*
 290 ** For the benefit of GNU folk...
 291 ** `_(MSGID)' uses the current locale's message library string for MSGID.
 292 ** The default is to use gettext if available, and use MSGID otherwise.
 293 */
 294
 295 #ifndef _
 296 #if HAVE_GETTEXT
 297 #define _(msgid) gettext(msgid)
 298 #else /* !HAVE_GETTEXT */
 299 #define _(msgid) msgid
 300 #endif /* !HAVE_GETTEXT */
 301 #endif /* !defined _ */
 302
 303 #ifndef TZ_DOMAIN
 304 #define TZ_DOMAIN "tz"
 305 #endif /* !defined TZ_DOMAIN */
 306
 307 #if HAVE_INCOMPATIBLE_CTIME_R
 308 #undef asctime_r
 309 #undef ctime_r
 310 char *asctime_r P((struct tm const *, char *));
 311 char *ctime_r P((time_t const *, char *));
 312 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
 313
 314 /*
 315 ** UNIX was a registered trademark of The Open Group in 2003.
 316 */
 317
 318 #endif /* !defined PRIVATE_H */