usr.sbin/zic/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  * FreeBSD modifications: separate libc's privates from zic's.
  12  * This makes it easier when we need to update one but not the other.
  13  * I have removed all of the ifdef spaghetti which is not relevant to
  14  * zic from this file.
  15  *
  16  * $FreeBSD: src/usr.sbin/zic/private.h,v 1.3 1999/08/28 01:21:18 peter Exp $
  17  * $DragonFly: src/usr.sbin/zic/private.h,v 1.3 2004/02/29 16:55:28 joerg Exp $
  18  *
  19  * @(#)private.h        7.48
  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 /*
  31 ** ID
  32 */
  33
  34 /*
  35 ** Defaults for preprocessor symbols.
  36 ** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'.
  37 */
  38
  39 #ifndef HAVE_GETTEXT
  40 #define HAVE_GETTEXT            0
  41 #endif /* !defined HAVE_GETTEXT */
  42
  43 #ifndef HAVE_STRERROR
  44 #define HAVE_STRERROR           1
  45 #endif /* !defined HAVE_STRERROR */
  46
  47 #ifndef HAVE_SYMLINK
  48 #define HAVE_SYMLINK            1
  49 #endif /* !defined HAVE_SYMLINK */
  50
  51 #ifndef HAVE_UNISTD_H
  52 #define HAVE_UNISTD_H           1
  53 #endif /* !defined HAVE_UNISTD_H */
  54
  55 /*
  56 ** Nested includes
  57 */
  58
  59 #include "sys/types.h"  /* for time_t */
  60 #include "stdio.h"
  61 #include "errno.h"
  62 #include "string.h"
  63 #include "limits.h"     /* for CHAR_BIT */
  64 #include "time.h"
  65 #include "stdlib.h"
  66
  67 #if HAVE_GETTEXT - 0
  68 #include "libintl.h"
  69 #endif /* HAVE_GETTEXT - 0 */
  70
  71 #if HAVE_UNISTD_H - 0
  72 #include "unistd.h"     /* for F_OK and R_OK */
  73 #endif /* HAVE_UNISTD_H - 0 */
  74
  75 #if !(HAVE_UNISTD_H - 0)
  76 #ifndef F_OK
  77 #define F_OK    0
  78 #endif /* !defined F_OK */
  79 #ifndef R_OK
  80 #define R_OK    4
  81 #endif /* !defined R_OK */
  82 #endif /* !(HAVE_UNISTD_H - 0) */
  83
  84 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX.  */
  85 #define is_digit(c) ((unsigned)(c) - '0' <= 9)
  86
  87 /*
  88 ** Private function declarations.
  89 */
  90 char    *icalloc(int nelem, int elsize);
  91 char    *icatalloc(char *old, const char *new);
  92 char    *icpyalloc(const char *string);
  93 char    *imalloc(int n);
  94 void    *irealloc(void * pointer, int size);
  95 void     icfree(char * pointer);
  96 void     ifree(char * pointer);
  97 char    *scheck(const char *string, const char *format);
  98
  99 /*
 100 ** Finally, some convenience items.
 101 */
 102
 103 #ifndef TRUE
 104 #define TRUE    1
 105 #endif /* !defined TRUE */
 106
 107 #ifndef FALSE
 108 #define FALSE   0
 109 #endif /* !defined FALSE */
 110
 111 #ifndef TYPE_BIT
 112 #define TYPE_BIT(type)  (sizeof (type) * CHAR_BIT)
 113 #endif /* !defined TYPE_BIT */
 114
 115 #ifndef TYPE_SIGNED
 116 #define TYPE_SIGNED(type) (((type) -1) < 0)
 117 #endif /* !defined TYPE_SIGNED */
 118
 119 #ifndef INT_STRLEN_MAXIMUM
 120 /*
 121 ** 302 / 1000 is log10(2.0) rounded up.
 122 ** Subtract one for the sign bit if the type is signed;
 123 ** add one for integer division truncation;
 124 ** add one more for a minus sign if the type is signed.
 125 */
 126 #define INT_STRLEN_MAXIMUM(type) \
 127     ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + 1 + TYPE_SIGNED(type))
 128 #endif /* !defined INT_STRLEN_MAXIMUM */
 129
 130 /*
 131 ** INITIALIZE(x)
 132 */
 133
 134 #ifndef GNUC_or_lint
 135 #ifdef lint
 136 #define GNUC_or_lint
 137 #endif /* defined lint */
 138 #ifndef lint
 139 #ifdef __GNUC__
 140 #define GNUC_or_lint
 141 #endif /* defined __GNUC__ */
 142 #endif /* !defined lint */
 143 #endif /* !defined GNUC_or_lint */
 144
 145 #ifndef INITIALIZE
 146 #ifdef GNUC_or_lint
 147 #define INITIALIZE(x)   ((x) = 0)
 148 #endif /* defined GNUC_or_lint */
 149 #ifndef GNUC_or_lint
 150 #define INITIALIZE(x)
 151 #endif /* !defined GNUC_or_lint */
 152 #endif /* !defined INITIALIZE */
 153
 154 /*
 155 ** For the benefit of GNU folk...
 156 ** `_(MSGID)' uses the current locale's message library string for MSGID.
 157 ** The default is to use gettext if available, and use MSGID otherwise.
 158 */
 159
 160 #ifndef _
 161 #if HAVE_GETTEXT - 0
 162 #define _(msgid) gettext(msgid)
 163 #else /* !(HAVE_GETTEXT - 0) */
 164 #define _(msgid) msgid
 165 #endif /* !(HAVE_GETTEXT - 0) */
 166 #endif /* !defined _ */
 167
 168 #ifndef TZ_DOMAIN
 169 #define TZ_DOMAIN "tz"
 170 #endif /* !defined TZ_DOMAIN */
 171
 172 /*
 173 ** UNIX was a registered trademark of UNIX System Laboratories in 1993.
 174 */
 175
 176 #endif /* !defined PRIVATE_H */