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private.h revision 1.19 
      1 /*	$NetBSD: private.h,v 1.19 2001/01/16 02:38:17 cgd 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	7.51";
     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_INCOMPATIBLE_CTIME_R
     51 #define HAVE_INCOMPATIBLE_CTIME_R	0
     52 #endif /* !defined INCOMPATIBLE_CTIME_R */
     53 
     54 #ifndef HAVE_SETTIMEOFDAY
     55 #define HAVE_SETTIMEOFDAY	3
     56 #endif /* !defined HAVE_SETTIMEOFDAY */
     57 
     58 #ifndef HAVE_STRERROR
     59 #define HAVE_STRERROR		1
     60 #endif /* !defined HAVE_STRERROR */
     61 
     62 #ifndef HAVE_SYMLINK
     63 #define HAVE_SYMLINK		1
     64 #endif /* !defined HAVE_SYMLINK */
     65 
     66 #ifndef HAVE_SYS_WAIT_H
     67 #define HAVE_SYS_WAIT_H		1
     68 #endif /* !defined HAVE_SYS_WAIT_H */
     69 
     70 #ifndef HAVE_UNISTD_H
     71 #define HAVE_UNISTD_H		1
     72 #endif /* !defined HAVE_UNISTD_H */
     73 
     74 #ifndef HAVE_UTMPX_H
     75 #define HAVE_UTMPX_H		0
     76 #endif /* !defined HAVE_UTMPX_H */
     77 
     78 #ifdef LOCALE_HOME
     79 #undef LOCALE_HOME		/* not to be handled by tzcode itself */
     80 #endif /* defined LOCALE_HOME */
     81 
     82 #if HAVE_INCOMPATIBLE_CTIME_R
     83 #define asctime_r _incompatible_asctime_r
     84 #define ctime_r _incompatible_ctime_r
     85 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
     86 
     87 /*
     88 ** Nested includes
     89 */
     90 
     91 #include "sys/types.h"	/* for time_t */
     92 #include "stdio.h"
     93 #include "errno.h"
     94 #include "string.h"
     95 #include "limits.h"	/* for CHAR_BIT */
     96 #include "time.h"
     97 #include "stdlib.h"
     98 
     99 #if HAVE_GETTEXT - 0
    100 #include "libintl.h"
    101 #endif /* HAVE_GETTEXT - 0 */
    102 
    103 #if HAVE_SYS_WAIT_H - 0
    104 #include <sys/wait.h>	/* for WIFEXITED and WEXITSTATUS */
    105 #endif /* HAVE_SYS_WAIT_H - 0 */
    106 
    107 #ifndef WIFEXITED
    108 #define WIFEXITED(status)	(((status) & 0xff) == 0)
    109 #endif /* !defined WIFEXITED */
    110 #ifndef WEXITSTATUS
    111 #define WEXITSTATUS(status)	(((status) >> 8) & 0xff)
    112 #endif /* !defined WEXITSTATUS */
    113 
    114 #if HAVE_UNISTD_H - 0
    115 #include "unistd.h"	/* for F_OK and R_OK */
    116 #endif /* HAVE_UNISTD_H - 0 */
    117 
    118 #if !(HAVE_UNISTD_H - 0)
    119 #ifndef F_OK
    120 #define F_OK	0
    121 #endif /* !defined F_OK */
    122 #ifndef R_OK
    123 #define R_OK	4
    124 #endif /* !defined R_OK */
    125 #endif /* !(HAVE_UNISTD_H - 0) */
    126 
    127 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX.  */
    128 #define is_digit(c) ((unsigned)(c) - '0' <= 9)
    129 
    130 /*
    131 ** Workarounds for compilers/systems.
    132 */
    133 
    134 /*
    135 ** SunOS 4.1.1 cc lacks const.
    136 */
    137 
    138 #ifndef const
    139 #ifndef __STDC__
    140 #define const
    141 #endif /* !defined __STDC__ */
    142 #endif /* !defined const */
    143 
    144 /*
    145 ** SunOS 4.1.1 cc lacks prototypes.
    146 */
    147 
    148 #ifndef P
    149 #ifdef __STDC__
    150 #define P(x)	x
    151 #endif /* defined __STDC__ */
    152 #ifndef __STDC__
    153 #define P(x)	()
    154 #endif /* !defined __STDC__ */
    155 #endif /* !defined P */
    156 
    157 /*
    158 ** SunOS 4.1.1 headers lack EXIT_SUCCESS.
    159 */
    160 
    161 #ifndef EXIT_SUCCESS
    162 #define EXIT_SUCCESS	0
    163 #endif /* !defined EXIT_SUCCESS */
    164 
    165 /*
    166 ** SunOS 4.1.1 headers lack EXIT_FAILURE.
    167 */
    168 
    169 #ifndef EXIT_FAILURE
    170 #define EXIT_FAILURE	1
    171 #endif /* !defined EXIT_FAILURE */
    172 
    173 /*
    174 ** SunOS 4.1.1 headers lack FILENAME_MAX.
    175 */
    176 
    177 #ifndef FILENAME_MAX
    178 
    179 #ifndef MAXPATHLEN
    180 #ifdef unix
    181 #include "sys/param.h"
    182 #endif /* defined unix */
    183 #endif /* !defined MAXPATHLEN */
    184 
    185 #ifdef MAXPATHLEN
    186 #define FILENAME_MAX	MAXPATHLEN
    187 #endif /* defined MAXPATHLEN */
    188 #ifndef MAXPATHLEN
    189 #define FILENAME_MAX	1024		/* Pure guesswork */
    190 #endif /* !defined MAXPATHLEN */
    191 
    192 #endif /* !defined FILENAME_MAX */
    193 
    194 /*
    195 ** SunOS 4.1.1 libraries lack remove.
    196 */
    197 
    198 #ifndef __NetBSD__
    199 #ifndef remove
    200 extern int	unlink P((const char * filename));
    201 #define remove	unlink
    202 #endif /* !defined remove */
    203 #endif
    204 
    205 /*
    206 ** Some ancient errno.h implementations don't declare errno.
    207 ** But some newer errno.h implementations define it as a macro.
    208 ** Fix the former without affecting the latter.
    209 */
    210 #ifndef errno
    211 extern int errno;
    212 #endif /* !defined errno */
    213 
    214 /*
    215 ** Private function declarations.
    216 */
    217 char *	icalloc P((int nelem, int elsize));
    218 char *	icatalloc P((char * old, const char * new));
    219 char *	icpyalloc P((const char * string));
    220 char *	imalloc P((int n));
    221 void *	irealloc P((void * pointer, int size));
    222 void	icfree P((char * pointer));
    223 void	ifree P((char * pointer));
    224 char *	scheck P((const char *string, const char *format))
    225 	__attribute__((__format_arg__(2)));
    226 
    227 
    228 /*
    229 ** Finally, some convenience items.
    230 */
    231 
    232 #ifndef TRUE
    233 #define TRUE	1
    234 #endif /* !defined TRUE */
    235 
    236 #ifndef FALSE
    237 #define FALSE	0
    238 #endif /* !defined FALSE */
    239 
    240 #ifndef TYPE_BIT
    241 #define TYPE_BIT(type)	(sizeof (type) * CHAR_BIT)
    242 #endif /* !defined TYPE_BIT */
    243 
    244 #ifndef TYPE_SIGNED
    245 #define TYPE_SIGNED(type) (((type) -1) < 0)
    246 #endif /* !defined TYPE_SIGNED */
    247 
    248 #ifndef INT_STRLEN_MAXIMUM
    249 /*
    250 ** 302 / 1000 is log10(2.0) rounded up.
    251 ** Subtract one for the sign bit if the type is signed;
    252 ** add one for integer division truncation;
    253 ** add one more for a minus sign if the type is signed.
    254 */
    255 #define INT_STRLEN_MAXIMUM(type) \
    256     ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + 1 + TYPE_SIGNED(type))
    257 #endif /* !defined INT_STRLEN_MAXIMUM */
    258 
    259 /*
    260 ** INITIALIZE(x)
    261 */
    262 
    263 #ifndef GNUC_or_lint
    264 #ifdef lint
    265 #define GNUC_or_lint
    266 #endif /* defined lint */
    267 #ifndef lint
    268 #ifdef __GNUC__
    269 #define GNUC_or_lint
    270 #endif /* defined __GNUC__ */
    271 #endif /* !defined lint */
    272 #endif /* !defined GNUC_or_lint */
    273 
    274 #ifndef INITIALIZE
    275 #ifdef GNUC_or_lint
    276 #define INITIALIZE(x)	((x) = 0)
    277 #endif /* defined GNUC_or_lint */
    278 #ifndef GNUC_or_lint
    279 #define INITIALIZE(x)
    280 #endif /* !defined GNUC_or_lint */
    281 #endif /* !defined INITIALIZE */
    282 
    283 /*
    284 ** For the benefit of GNU folk...
    285 ** `_(MSGID)' uses the current locale's message library string for MSGID.
    286 ** The default is to use gettext if available, and use MSGID otherwise.
    287 */
    288 
    289 #ifndef _
    290 #if HAVE_GETTEXT - 0
    291 #define _(msgid) gettext(msgid)
    292 #else /* !(HAVE_GETTEXT - 0) */
    293 #define _(msgid) msgid
    294 #endif /* !(HAVE_GETTEXT - 0) */
    295 #endif /* !defined _ */
    296 
    297 #ifndef TZ_DOMAIN
    298 #define TZ_DOMAIN "tz"
    299 #endif /* !defined TZ_DOMAIN */
    300 
    301 #if HAVE_INCOMPATIBLE_CTIME_R
    302 #undef asctime_r
    303 #undef ctime_r
    304 char *asctime_r P((struct tm const *, char *));
    305 char *ctime_r P((time_t const *, char *));
    306 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
    307 
    308 /*
    309 ** UNIX was a registered trademark of UNIX System Laboratories in 1993.
    310 */
    311 
    312 #endif /* !defined PRIVATE_H */
    313