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private.h revision 1.9 
      1 /*	$NetBSD: private.h,v 1.9 1997/07/13 20:26:51 christos Exp $	*/
      2 
      3 #ifndef PRIVATE_H
      4 #define PRIVATE_H
      5 
      6 /* NetBSD defaults */
      7 #define TM_GMTOFF	tm_gmtoff
      8 #define TM_ZONE		tm_zone
      9 #define STD_INSPIRED	1
     10 #define HAVE_LONG_DOUBLE 1
     11 
     12 /*
     13 ** This file is in the public domain, so clarified as of
     14 ** 1996-06-05 by Arthur David Olson (arthur_david_olson (at) nih.gov).
     15 */
     16 
     17 /*
     18 ** This header is for use ONLY with the time conversion code.
     19 ** There is no guarantee that it will remain unchanged,
     20 ** or that it will remain at all.
     21 ** Do NOT copy it to any system include directory.
     22 ** Thank you!
     23 */
     24 
     25 /*
     26 ** ID
     27 */
     28 
     29 #ifndef lint
     30 #ifndef NOID
     31 #if 0
     32 static char	privatehid[] = "@(#)private.h	7.45";
     33 #endif
     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_ADJTIME
     43 #define HAVE_ADJTIME		1
     44 #endif /* !defined HAVE_ADJTIME */
     45 
     46 #ifndef HAVE_GETTEXT
     47 #define HAVE_GETTEXT		0
     48 #endif /* !defined HAVE_GETTEXT */
     49 
     50 #ifndef HAVE_SETTIMEOFDAY
     51 #define HAVE_SETTIMEOFDAY	3
     52 #endif /* !defined HAVE_SETTIMEOFDAY */
     53 
     54 #ifndef HAVE_STRERROR
     55 #define HAVE_STRERROR		1
     56 #endif /* !defined HAVE_STRERROR */
     57 
     58 #ifndef HAVE_UNISTD_H
     59 #define HAVE_UNISTD_H		1
     60 #endif /* !defined HAVE_UNISTD_H */
     61 
     62 #ifndef HAVE_UTMPX_H
     63 #define HAVE_UTMPX_H		0
     64 #endif /* !defined HAVE_UTMPX_H */
     65 
     66 #ifndef LOCALE_HOME
     67 #define LOCALE_HOME		"/usr/lib/locale"
     68 #endif /* !defined LOCALE_HOME */
     69 
     70 /*
     71 ** Nested includes
     72 */
     73 
     74 #include "sys/types.h"	/* for time_t */
     75 #include "stdio.h"
     76 #include "errno.h"
     77 #include "string.h"
     78 #include "limits.h"	/* for CHAR_BIT */
     79 #include "time.h"
     80 #include "stdlib.h"
     81 
     82 #if HAVE_GETTEXT - 0
     83 #include "libintl.h"
     84 #endif /* HAVE_GETTEXT - 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 /*
    103 ** Workarounds for compilers/systems.
    104 */
    105 
    106 /*
    107 ** SunOS 4.1.1 cc lacks const.
    108 */
    109 
    110 #ifndef const
    111 #ifndef __STDC__
    112 #define const
    113 #endif /* !defined __STDC__ */
    114 #endif /* !defined const */
    115 
    116 /*
    117 ** SunOS 4.1.1 cc lacks prototypes.
    118 */
    119 
    120 #ifndef P
    121 #ifdef __STDC__
    122 #define P(x)	x
    123 #endif /* defined __STDC__ */
    124 #ifndef __STDC__
    125 #define P(x)	()
    126 #endif /* !defined __STDC__ */
    127 #endif /* !defined P */
    128 
    129 /*
    130 ** SunOS 4.1.1 headers lack EXIT_SUCCESS.
    131 */
    132 
    133 #ifndef EXIT_SUCCESS
    134 #define EXIT_SUCCESS	0
    135 #endif /* !defined EXIT_SUCCESS */
    136 
    137 /*
    138 ** SunOS 4.1.1 headers lack EXIT_FAILURE.
    139 */
    140 
    141 #ifndef EXIT_FAILURE
    142 #define EXIT_FAILURE	1
    143 #endif /* !defined EXIT_FAILURE */
    144 
    145 /*
    146 ** SunOS 4.1.1 headers lack FILENAME_MAX.
    147 */
    148 
    149 #ifndef FILENAME_MAX
    150 
    151 #ifndef MAXPATHLEN
    152 #ifdef unix
    153 #include "sys/param.h"
    154 #endif /* defined unix */
    155 #endif /* !defined MAXPATHLEN */
    156 
    157 #ifdef MAXPATHLEN
    158 #define FILENAME_MAX	MAXPATHLEN
    159 #endif /* defined MAXPATHLEN */
    160 #ifndef MAXPATHLEN
    161 #define FILENAME_MAX	1024		/* Pure guesswork */
    162 #endif /* !defined MAXPATHLEN */
    163 
    164 #endif /* !defined FILENAME_MAX */
    165 
    166 /*
    167 ** SunOS 4.1.1 libraries lack remove.
    168 */
    169 
    170 #ifndef remove
    171 extern int	unlink P((const char * filename));
    172 #define remove	unlink
    173 #endif /* !defined remove */
    174 
    175 /*
    176 ** Some ancient errno.h implementations don't declare errno.
    177 ** But some newer errno.h implementations define it as a macro.
    178 ** Fix the former without affecting the latter.
    179 */
    180 #ifndef errno
    181 extern int errno;
    182 #endif /* !defined errno */
    183 
    184 /*
    185 ** Private function declarations.
    186 */
    187 char *	icalloc P((int nelem, int elsize));
    188 char *	icatalloc P((char * old, const char * new));
    189 char *	icpyalloc P((const char * string));
    190 char *	imalloc P((int n));
    191 void *	irealloc P((void * pointer, int size));
    192 void	icfree P((char * pointer));
    193 void	ifree P((char * pointer));
    194 char *  scheck P((const char *string, char *format));
    195 
    196 
    197 /*
    198 ** Finally, some convenience items.
    199 */
    200 
    201 #ifndef TRUE
    202 #define TRUE	1
    203 #endif /* !defined TRUE */
    204 
    205 #ifndef FALSE
    206 #define FALSE	0
    207 #endif /* !defined FALSE */
    208 
    209 #ifndef TYPE_BIT
    210 #define TYPE_BIT(type)	(sizeof (type) * CHAR_BIT)
    211 #endif /* !defined TYPE_BIT */
    212 
    213 #ifndef TYPE_SIGNED
    214 #define TYPE_SIGNED(type) (((type) -1) < 0)
    215 #endif /* !defined TYPE_SIGNED */
    216 
    217 #ifndef INT_STRLEN_MAXIMUM
    218 /*
    219 ** 302 / 1000 is log10(2.0) rounded up.
    220 ** Subtract one for the sign bit if the type is signed;
    221 ** add one for integer division truncation;
    222 ** add one more for a minus sign if the type is signed.
    223 */
    224 #define INT_STRLEN_MAXIMUM(type) \
    225     ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 100 + 1 + TYPE_SIGNED(type))
    226 #endif /* !defined INT_STRLEN_MAXIMUM */
    227 
    228 /*
    229 ** INITIALIZE(x)
    230 */
    231 
    232 #ifndef GNUC_or_lint
    233 #ifdef lint
    234 #define GNUC_or_lint
    235 #endif /* defined lint */
    236 #ifndef lint
    237 #ifdef __GNUC__
    238 #define GNUC_or_lint
    239 #endif /* defined __GNUC__ */
    240 #endif /* !defined lint */
    241 #endif /* !defined GNUC_or_lint */
    242 
    243 #ifndef INITIALIZE
    244 #ifdef GNUC_or_lint
    245 #define INITIALIZE(x)	((x) = 0)
    246 #endif /* defined GNUC_or_lint */
    247 #ifndef GNUC_or_lint
    248 #define INITIALIZE(x)
    249 #endif /* !defined GNUC_or_lint */
    250 #endif /* !defined INITIALIZE */
    251 
    252 /*
    253 ** For the benefit of GNU folk...
    254 ** `_(MSGID)' uses the current locale's message library string for MSGID.
    255 ** The default is to use gettext if available, and use MSGID otherwise.
    256 */
    257 
    258 #ifndef _
    259 #if HAVE_GETTEXT - 0
    260 #define _(msgid) gettext(msgid)
    261 #else /* !(HAVE_GETTEXT - 0) */
    262 #define _(msgid) msgid
    263 #endif /* !(HAVE_GETTEXT - 0) */
    264 #endif /* !defined _ */
    265 
    266 #ifndef TZ_DOMAIN
    267 #define TZ_DOMAIN "tz"
    268 #endif /* !defined TZ_DOMAIN */
    269 
    270 /*
    271 ** UNIX was a registered trademark of UNIX System Laboratories in 1993.
    272 */
    273 
    274 #endif /* !defined PRIVATE_H */
    275