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 (arthur_david_olson@nih.gov).
   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   7.49";
  25 #endif /* !defined NOID */
  26 #endif /* !defined lint */
  27
  28 /*
  29 ** Defaults for preprocessor symbols.
  30 ** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'.
  31 */
  32
  33 #ifndef HAVE_ADJTIME
  34 #define HAVE_ADJTIME            1
  35 #endif /* !defined HAVE_ADJTIME */
  36
  37 #ifndef HAVE_GETTEXT
  38 #define HAVE_GETTEXT            0
  39 #endif /* !defined HAVE_GETTEXT */
  40
  41 #ifndef HAVE_SETTIMEOFDAY
  42 #define HAVE_SETTIMEOFDAY       3
  43 #endif /* !defined HAVE_SETTIMEOFDAY */
  44
  45 #ifndef HAVE_STRERROR
  46 #define HAVE_STRERROR           0
  47 #endif /* !defined HAVE_STRERROR */
  48
  49 #ifndef HAVE_SYMLINK
  50 #define HAVE_SYMLINK            1
  51 #endif /* !defined HAVE_SYMLINK */
  52
  53 #ifndef HAVE_SYS_WAIT_H
  54 #define HAVE_SYS_WAIT_H         1
  55 #endif /* !defined HAVE_SYS_WAIT_H */
  56
  57 #ifndef HAVE_UNISTD_H
  58 #define HAVE_UNISTD_H           1
  59 #endif /* !defined HAVE_UNISTD_H */
  60
  61 #ifndef HAVE_UTMPX_H
  62 #define HAVE_UTMPX_H            0
  63 #endif /* !defined HAVE_UTMPX_H */
  64
  65 #ifndef LOCALE_HOME
  66 #define LOCALE_HOME             "/usr/lib/locale"
  67 #endif /* !defined LOCALE_HOME */
  68
  69 /*
  70 ** Nested includes
  71 */
  72
  73 #include "sys/types.h"  /* for time_t */
  74 #include "stdio.h"
  75 #include "errno.h"
  76 #include "string.h"
  77 #include "limits.h"     /* for CHAR_BIT */
  78 #include "time.h"
  79 #include "stdlib.h"
  80
  81 #if HAVE_GETTEXT - 0
  82 #include "libintl.h"
  83 #endif /* HAVE_GETTEXT - 0 */
  84
  85 #if HAVE_SYS_WAIT_H - 0
  86 #include <sys/wait.h>   /* for WIFEXITED and WEXITSTATUS */
  87 #endif /* HAVE_SYS_WAIT_H - 0 */
  88
  89 #ifndef WIFEXITED
  90 #define WIFEXITED(status)       (((status) & 0xff) == 0)
  91 #endif /* !defined WIFEXITED */
  92 #ifndef WEXITSTATUS
  93 #define WEXITSTATUS(status)     (((status) >> 8) & 0xff)
  94 #endif /* !defined WEXITSTATUS */
  95
  96 #if HAVE_UNISTD_H - 0
  97 #include "unistd.h"     /* for F_OK and R_OK */
  98 #endif /* HAVE_UNISTD_H - 0 */
  99
 100 #if !(HAVE_UNISTD_H - 0)
 101 #ifndef F_OK
 102 #define F_OK    0
 103 #endif /* !defined F_OK */
 104 #ifndef R_OK
 105 #define R_OK    4
 106 #endif /* !defined R_OK */
 107 #endif /* !(HAVE_UNISTD_H - 0) */
 108
 109 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX.  */
 110 #define is_digit(c) ((unsigned)(c) - '0' <= 9)
 111
 112 /*
 113 ** Workarounds for compilers/systems.
 114 */
 115
 116 /*
 117 ** SunOS 4.1.1 cc lacks const.
 118 */
 119
 120 #ifndef const
 121 #ifndef __STDC__
 122 #define const
 123 #endif /* !defined __STDC__ */
 124 #endif /* !defined const */
 125
 126 /*
 127 ** SunOS 4.1.1 cc lacks prototypes.
 128 */
 129
 130 #ifndef P
 131 #ifdef __STDC__
 132 #define P(x)    x
 133 #endif /* defined __STDC__ */
 134 #ifndef __STDC__
 135 #define P(x)    ()
 136 #endif /* !defined __STDC__ */
 137 #endif /* !defined P */
 138
 139 /*
 140 ** SunOS 4.1.1 headers lack EXIT_SUCCESS.
 141 */
 142
 143 #ifndef EXIT_SUCCESS
 144 #define EXIT_SUCCESS    0
 145 #endif /* !defined EXIT_SUCCESS */
 146
 147 /*
 148 ** SunOS 4.1.1 headers lack EXIT_FAILURE.
 149 */
 150
 151 #ifndef EXIT_FAILURE
 152 #define EXIT_FAILURE    1
 153 #endif /* !defined EXIT_FAILURE */
 154
 155 /*
 156 ** SunOS 4.1.1 headers lack FILENAME_MAX.
 157 */
 158
 159 #ifndef FILENAME_MAX
 160
 161 #ifndef MAXPATHLEN
 162 #ifdef unix
 163 #include "sys/param.h"
 164 #endif /* defined unix */
 165 #endif /* !defined MAXPATHLEN */
 166
 167 #ifdef MAXPATHLEN
 168 #define FILENAME_MAX    MAXPATHLEN
 169 #endif /* defined MAXPATHLEN */
 170 #ifndef MAXPATHLEN
 171 #define FILENAME_MAX    1024            /* Pure guesswork */
 172 #endif /* !defined MAXPATHLEN */
 173
 174 #endif /* !defined FILENAME_MAX */
 175
 176 /*
 177 ** SunOS 4.1.1 libraries lack remove.
 178 */
 179
 180 #ifndef remove
 181 extern int      unlink P((const char * filename));
 182 #define remove  unlink
 183 #endif /* !defined remove */
 184
 185 /*
 186 ** Some ancient errno.h implementations don't declare errno.
 187 ** But some newer errno.h implementations define it as a macro.
 188 ** Fix the former without affecting the latter.
 189 */
 190 #ifndef errno
 191 extern int errno;
 192 #endif /* !defined errno */
 193
 194 /*
 195 ** Private function declarations.
 196 */
 197 char *  icalloc P((int nelem, int elsize));
 198 char *  icatalloc P((char * old, const char * new));
 199 char *  icpyalloc P((const char * string));
 200 char *  imalloc P((int n));
 201 void *  irealloc P((void * pointer, int size));
 202 void    icfree P((char * pointer));
 203 void    ifree P((char * pointer));
 204 char *  scheck P((const char *string, const char *format));
 205
 206
 207 /*
 208 ** Finally, some convenience items.
 209 */
 210
 211 #ifndef TRUE
 212 #define TRUE    1
 213 #endif /* !defined TRUE */
 214
 215 #ifndef FALSE
 216 #define FALSE   0
 217 #endif /* !defined FALSE */
 218
 219 #ifndef TYPE_BIT
 220 #define TYPE_BIT(type)  (sizeof (type) * CHAR_BIT)
 221 #endif /* !defined TYPE_BIT */
 222
 223 #ifndef TYPE_SIGNED
 224 #define TYPE_SIGNED(type) (((type) -1) < 0)
 225 #endif /* !defined TYPE_SIGNED */
 226
 227 #ifndef INT_STRLEN_MAXIMUM
 228 /*
 229 ** 302 / 1000 is log10(2.0) rounded up.
 230 ** Subtract one for the sign bit if the type is signed;
 231 ** add one for integer division truncation;
 232 ** add one more for a minus sign if the type is signed.
 233 */
 234 #define INT_STRLEN_MAXIMUM(type) \
 235     ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + 1 + TYPE_SIGNED(type))
 236 #endif /* !defined INT_STRLEN_MAXIMUM */
 237
 238 /*
 239 ** INITIALIZE(x)
 240 */
 241
 242 #ifndef GNUC_or_lint
 243 #ifdef lint
 244 #define GNUC_or_lint
 245 #endif /* defined lint */
 246 #ifndef lint
 247 #ifdef __GNUC__
 248 #define GNUC_or_lint
 249 #endif /* defined __GNUC__ */
 250 #endif /* !defined lint */
 251 #endif /* !defined GNUC_or_lint */
 252
 253 #ifndef INITIALIZE
 254 #ifdef GNUC_or_lint
 255 #define INITIALIZE(x)   ((x) = 0)
 256 #endif /* defined GNUC_or_lint */
 257 #ifndef GNUC_or_lint
 258 #define INITIALIZE(x)
 259 #endif /* !defined GNUC_or_lint */
 260 #endif /* !defined INITIALIZE */
 261
 262 /*
 263 ** For the benefit of GNU folk...
 264 ** `_(MSGID)' uses the current locale's message library string for MSGID.
 265 ** The default is to use gettext if available, and use MSGID otherwise.
 266 */
 267
 268 #ifndef _
 269 #if HAVE_GETTEXT - 0
 270 #define _(msgid) gettext(msgid)
 271 #else /* !(HAVE_GETTEXT - 0) */
 272 #define _(msgid) msgid
 273 #endif /* !(HAVE_GETTEXT - 0) */
 274 #endif /* !defined _ */
 275
 276 #ifndef TZ_DOMAIN
 277 #define TZ_DOMAIN "tz"
 278 #endif /* !defined TZ_DOMAIN */
 279
 280 /*
 281 ** UNIX was a registered trademark of UNIX System Laboratories in 1993.
 282 */
 283
 284 #endif /* !defined PRIVATE_H */