zic.tproj/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 1.7 2004/06/20 21:41:11 stefanf Exp $
  17  */
  18
  19 /*
  20 ** This header is for use ONLY with the time conversion code.
  21 ** There is no guarantee that it will remain unchanged,
  22 ** or that it will remain at all.
  23 ** Do NOT copy it to any system include directory.
  24 ** Thank you!
  25 */
  26
  27 /*
  28 ** ID
  29 */
  30
  31 #ifndef lint
  32 #ifndef NOID
  33 static const char       privatehid[] = "@(#)private.h   7.53";
  34 #endif /* !defined NOID */
  35 #endif /* !defined lint */
  36
  37 /*
  38 ** Defaults for preprocessor symbols.
  39 ** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'.
  40 */
  41
  42 #ifndef HAVE_GETTEXT
  43 #define HAVE_GETTEXT            0
  44 #endif /* !defined HAVE_GETTEXT */
  45
  46 #ifndef HAVE_STRERROR
  47 #define HAVE_STRERROR           1
  48 #endif /* !defined HAVE_STRERROR */
  49
  50 #ifndef HAVE_SYMLINK
  51 #define HAVE_SYMLINK            1
  52 #endif /* !defined HAVE_SYMLINK */
  53
  54 #ifndef HAVE_SYS_STAT_H
  55 #define HAVE_SYS_STAT_H         1
  56 #endif /* !defined HAVE_SYS_STAT_H */
  57
  58 #ifndef HAVE_SYS_WAIT_H
  59 #define HAVE_SYS_WAIT_H         1
  60 #endif /* !defined HAVE_SYS_WAIT_H */
  61
  62 #ifndef HAVE_UNISTD_H
  63 #define HAVE_UNISTD_H           1
  64 #endif /* !defined HAVE_UNISTD_H */
  65
  66 /*
  67 ** Nested includes
  68 */
  69
  70 #include "sys/types.h"  /* for time_t */
  71 #include "stdio.h"
  72 #include "errno.h"
  73 #include "string.h"
  74 #include "limits.h"     /* for CHAR_BIT */
  75 #include "time.h"
  76 #include "stdlib.h"
  77
  78 #if HAVE_GETTEXT - 0
  79 #include "libintl.h"
  80 #endif /* HAVE_GETTEXT - 0 */
  81
  82 #if HAVE_SYS_WAIT_H - 0
  83 #include <sys/wait.h>   /* for WIFEXITED and WEXITSTATUS */
  84 #endif /* HAVE_SYS_WAIT_H - 0 */
  85
  86 #if HAVE_UNISTD_H - 0
  87 #include "unistd.h"     /* for F_OK and R_OK */
  88 #endif /* HAVE_UNISTD_H - 0 */
  89
  90 #if !(HAVE_UNISTD_H - 0)
  91 #ifndef F_OK
  92 #define F_OK    0
  93 #endif /* !defined F_OK */
  94 #ifndef R_OK
  95 #define R_OK    4
  96 #endif /* !defined R_OK */
  97 #endif /* !(HAVE_UNISTD_H - 0) */
  98
  99 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX.  */
 100 #define is_digit(c) ((unsigned)(c) - '0' <= 9)
 101
 102 #define P(x) x
 103
 104 /*
 105 ** Private function declarations.
 106 */
 107 char *  icalloc P((size_t nelem, size_t elsize));
 108 char *  icatalloc P((char * old, const char * new));
 109 char *  icpyalloc P((const char * string));
 110 char *  imalloc P((size_t n));
 111 void *  irealloc P((void * pointer, size_t size));
 112 void    icfree P((char * pointer));
 113 void    ifree P((char * pointer));
 114 char *  scheck P((const char *string, const char *format));
 115
 116 /*
 117 ** Finally, some convenience items.
 118 */
 119
 120 #ifndef TRUE
 121 #define TRUE    1
 122 #endif /* !defined TRUE */
 123
 124 #ifndef FALSE
 125 #define FALSE   0
 126 #endif /* !defined FALSE */
 127
 128 #ifndef TYPE_BIT
 129 #define TYPE_BIT(type)  (sizeof (type) * CHAR_BIT)
 130 #endif /* !defined TYPE_BIT */
 131
 132 #ifndef TYPE_SIGNED
 133 #define TYPE_SIGNED(type) (((type) -1) < 0)
 134 #endif /* !defined TYPE_SIGNED */
 135
 136 #ifndef INT_STRLEN_MAXIMUM
 137 /*
 138 ** 302 / 1000 is log10(2.0) rounded up.
 139 ** Subtract one for the sign bit if the type is signed;
 140 ** add one for integer division truncation;
 141 ** add one more for a minus sign if the type is signed.
 142 */
 143 #define INT_STRLEN_MAXIMUM(type) \
 144     ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + 1 + TYPE_SIGNED(type))
 145 #endif /* !defined INT_STRLEN_MAXIMUM */
 146
 147 /*
 148 ** INITIALIZE(x)
 149 */
 150
 151 #ifndef GNUC_or_lint
 152 #ifdef lint
 153 #define GNUC_or_lint
 154 #endif /* defined lint */
 155 #ifndef lint
 156 #ifdef __GNUC__
 157 #define GNUC_or_lint
 158 #endif /* defined __GNUC__ */
 159 #endif /* !defined lint */
 160 #endif /* !defined GNUC_or_lint */
 161
 162 #ifndef INITIALIZE
 163 #ifdef GNUC_or_lint
 164 #define INITIALIZE(x)   ((x) = 0)
 165 #endif /* defined GNUC_or_lint */
 166 #ifndef GNUC_or_lint
 167 #define INITIALIZE(x)
 168 #endif /* !defined GNUC_or_lint */
 169 #endif /* !defined INITIALIZE */
 170
 171 /*
 172 ** For the benefit of GNU folk...
 173 ** `_(MSGID)' uses the current locale's message library string for MSGID.
 174 ** The default is to use gettext if available, and use MSGID otherwise.
 175 */
 176
 177 #ifndef _
 178 #if HAVE_GETTEXT - 0
 179 #define _(msgid) gettext(msgid)
 180 #else /* !(HAVE_GETTEXT - 0) */
 181 #define _(msgid) msgid
 182 #endif /* !(HAVE_GETTEXT - 0) */
 183 #endif /* !defined _ */
 184
 185 #ifndef TZ_DOMAIN
 186 #define TZ_DOMAIN "tz"
 187 #endif /* !defined TZ_DOMAIN */
 188
 189 /*
 190 ** UNIX was a registered trademark of The Open Group in 2003.
 191 */
 192
 193 #endif /* !defined PRIVATE_H */