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private.h revision 1.21 
      1 /*	$NetBSD: private.h,v 1.21 2002/04/26 17:31:54 bjh21 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 /* For when we build zic as a host tool. */
     13 #ifdef HAVE_CONFIG_H
     14 #include "config.h"
     15 #endif
     16 
     17 /*
     18 ** This file is in the public domain, so clarified as of
     19 ** 1996-06-05 by Arthur David Olson (arthur_david_olson (at) nih.gov).
     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 #ifndef lint
     35 #ifndef NOID
     36 #if 0
     37 static char	privatehid[] = "@(#)private.h	7.52";
     38 #endif
     39 #endif /* !defined NOID */
     40 #endif /* !defined lint */
     41 
     42 /*
     43 ** Defaults for preprocessor symbols.
     44 ** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'.
     45 */
     46 
     47 #ifndef HAVE_ADJTIME
     48 #define HAVE_ADJTIME		1
     49 #endif /* !defined HAVE_ADJTIME */
     50 
     51 #ifndef HAVE_GETTEXT
     52 #define HAVE_GETTEXT		0
     53 #endif /* !defined HAVE_GETTEXT */
     54 
     55 #ifndef HAVE_INCOMPATIBLE_CTIME_R
     56 #define HAVE_INCOMPATIBLE_CTIME_R	0
     57 #endif /* !defined INCOMPATIBLE_CTIME_R */
     58 
     59 #ifndef HAVE_SETTIMEOFDAY
     60 #define HAVE_SETTIMEOFDAY	3
     61 #endif /* !defined HAVE_SETTIMEOFDAY */
     62 
     63 #ifndef HAVE_STRERROR
     64 #define HAVE_STRERROR		1
     65 #endif /* !defined HAVE_STRERROR */
     66 
     67 #ifndef HAVE_SYMLINK
     68 #define HAVE_SYMLINK		1
     69 #endif /* !defined HAVE_SYMLINK */
     70 
     71 #ifndef HAVE_SYS_STAT_H
     72 #define HAVE_SYS_STAT_H		1
     73 #endif /* !defined HAVE_SYS_STAT_H */
     74 
     75 #ifndef HAVE_SYS_WAIT_H
     76 #define HAVE_SYS_WAIT_H		1
     77 #endif /* !defined HAVE_SYS_WAIT_H */
     78 
     79 #ifndef HAVE_UNISTD_H
     80 #define HAVE_UNISTD_H		1
     81 #endif /* !defined HAVE_UNISTD_H */
     82 
     83 #ifndef HAVE_UTMPX_H
     84 #define HAVE_UTMPX_H		0
     85 #endif /* !defined HAVE_UTMPX_H */
     86 
     87 #ifdef LOCALE_HOME
     88 #undef LOCALE_HOME		/* not to be handled by tzcode itself */
     89 #endif /* defined LOCALE_HOME */
     90 
     91 #if HAVE_INCOMPATIBLE_CTIME_R
     92 #define asctime_r _incompatible_asctime_r
     93 #define ctime_r _incompatible_ctime_r
     94 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
     95 
     96 /*
     97 ** Nested includes
     98 */
     99 
    100 #include "sys/types.h"	/* for time_t */
    101 #include "stdio.h"
    102 #include "errno.h"
    103 #include "string.h"
    104 #include "limits.h"	/* for CHAR_BIT */
    105 #include "time.h"
    106 #include "stdlib.h"
    107 
    108 #if HAVE_GETTEXT - 0
    109 #include "libintl.h"
    110 #endif /* HAVE_GETTEXT - 0 */
    111 
    112 #if HAVE_SYS_WAIT_H - 0
    113 #include <sys/wait.h>	/* for WIFEXITED and WEXITSTATUS */
    114 #endif /* HAVE_SYS_WAIT_H - 0 */
    115 
    116 #ifndef WIFEXITED
    117 #define WIFEXITED(status)	(((status) & 0xff) == 0)
    118 #endif /* !defined WIFEXITED */
    119 #ifndef WEXITSTATUS
    120 #define WEXITSTATUS(status)	(((status) >> 8) & 0xff)
    121 #endif /* !defined WEXITSTATUS */
    122 
    123 #if HAVE_UNISTD_H - 0
    124 #include "unistd.h"	/* for F_OK and R_OK */
    125 #endif /* HAVE_UNISTD_H - 0 */
    126 
    127 #if !(HAVE_UNISTD_H - 0)
    128 #ifndef F_OK
    129 #define F_OK	0
    130 #endif /* !defined F_OK */
    131 #ifndef R_OK
    132 #define R_OK	4
    133 #endif /* !defined R_OK */
    134 #endif /* !(HAVE_UNISTD_H - 0) */
    135 
    136 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX.  */
    137 #define is_digit(c) ((unsigned)(c) - '0' <= 9)
    138 
    139 /*
    140 ** Workarounds for compilers/systems.
    141 */
    142 
    143 /*
    144 ** SunOS 4.1.1 cc lacks prototypes.
    145 */
    146 
    147 #ifndef P
    148 #ifdef __STDC__
    149 #define P(x)	x
    150 #endif /* defined __STDC__ */
    151 #ifndef __STDC__
    152 #define P(x)	()
    153 #endif /* !defined __STDC__ */
    154 #endif /* !defined P */
    155 
    156 /*
    157 ** SunOS 4.1.1 headers lack EXIT_SUCCESS.
    158 */
    159 
    160 #ifndef EXIT_SUCCESS
    161 #define EXIT_SUCCESS	0
    162 #endif /* !defined EXIT_SUCCESS */
    163 
    164 /*
    165 ** SunOS 4.1.1 headers lack EXIT_FAILURE.
    166 */
    167 
    168 #ifndef EXIT_FAILURE
    169 #define EXIT_FAILURE	1
    170 #endif /* !defined EXIT_FAILURE */
    171 
    172 /*
    173 ** SunOS 4.1.1 headers lack FILENAME_MAX.
    174 */
    175 
    176 #ifndef FILENAME_MAX
    177 
    178 #ifndef MAXPATHLEN
    179 #ifdef unix
    180 #include "sys/param.h"
    181 #endif /* defined unix */
    182 #endif /* !defined MAXPATHLEN */
    183 
    184 #ifdef MAXPATHLEN
    185 #define FILENAME_MAX	MAXPATHLEN
    186 #endif /* defined MAXPATHLEN */
    187 #ifndef MAXPATHLEN
    188 #define FILENAME_MAX	1024		/* Pure guesswork */
    189 #endif /* !defined MAXPATHLEN */
    190 
    191 #endif /* !defined FILENAME_MAX */
    192 
    193 /*
    194 ** SunOS 4.1.1 libraries lack remove.
    195 */
    196 
    197 #ifndef __NetBSD__
    198 #ifndef remove
    199 extern int	unlink P((const char * filename));
    200 #define remove	unlink
    201 #endif /* !defined remove */
    202 #endif
    203 
    204 /*
    205 ** Some ancient errno.h implementations don't declare errno.
    206 ** But some newer errno.h implementations define it as a macro.
    207 ** Fix the former without affecting the latter.
    208 */
    209 #ifndef errno
    210 extern int errno;
    211 #endif /* !defined errno */
    212 
    213 /*
    214 ** Private function declarations.
    215 */
    216 char *	icalloc P((int nelem, int elsize));
    217 char *	icatalloc P((char * old, const char * new));
    218 char *	icpyalloc P((const char * string));
    219 char *	imalloc P((int n));
    220 void *	irealloc P((void * pointer, int size));
    221 void	icfree P((char * pointer));
    222 void	ifree P((char * pointer));
    223 char *	scheck P((const char *string, const char *format))
    224 	__attribute__((__format_arg__(2)));
    225 
    226 
    227 /*
    228 ** Finally, some convenience items.
    229 */
    230 
    231 #ifndef TRUE
    232 #define TRUE	1
    233 #endif /* !defined TRUE */
    234 
    235 #ifndef FALSE
    236 #define FALSE	0
    237 #endif /* !defined FALSE */
    238 
    239 #ifndef TYPE_BIT
    240 #define TYPE_BIT(type)	(sizeof (type) * CHAR_BIT)
    241 #endif /* !defined TYPE_BIT */
    242 
    243 #ifndef TYPE_SIGNED
    244 #define TYPE_SIGNED(type) (((type) -1) < 0)
    245 #endif /* !defined TYPE_SIGNED */
    246 
    247 #ifndef INT_STRLEN_MAXIMUM
    248 /*
    249 ** 302 / 1000 is log10(2.0) rounded up.
    250 ** Subtract one for the sign bit if the type is signed;
    251 ** add one for integer division truncation;
    252 ** add one more for a minus sign if the type is signed.
    253 */
    254 #define INT_STRLEN_MAXIMUM(type) \
    255     ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + 1 + TYPE_SIGNED(type))
    256 #endif /* !defined INT_STRLEN_MAXIMUM */
    257 
    258 /*
    259 ** INITIALIZE(x)
    260 */
    261 
    262 #ifndef GNUC_or_lint
    263 #ifdef lint
    264 #define GNUC_or_lint
    265 #endif /* defined lint */
    266 #ifndef lint
    267 #ifdef __GNUC__
    268 #define GNUC_or_lint
    269 #endif /* defined __GNUC__ */
    270 #endif /* !defined lint */
    271 #endif /* !defined GNUC_or_lint */
    272 
    273 #ifndef INITIALIZE
    274 #ifdef GNUC_or_lint
    275 #define INITIALIZE(x)	((x) = 0)
    276 #endif /* defined GNUC_or_lint */
    277 #ifndef GNUC_or_lint
    278 #define INITIALIZE(x)
    279 #endif /* !defined GNUC_or_lint */
    280 #endif /* !defined INITIALIZE */
    281 
    282 /*
    283 ** For the benefit of GNU folk...
    284 ** `_(MSGID)' uses the current locale's message library string for MSGID.
    285 ** The default is to use gettext if available, and use MSGID otherwise.
    286 */
    287 
    288 #ifndef _
    289 #if HAVE_GETTEXT - 0
    290 #define _(msgid) gettext(msgid)
    291 #else /* !(HAVE_GETTEXT - 0) */
    292 #define _(msgid) msgid
    293 #endif /* !(HAVE_GETTEXT - 0) */
    294 #endif /* !defined _ */
    295 
    296 #ifndef TZ_DOMAIN
    297 #define TZ_DOMAIN "tz"
    298 #endif /* !defined TZ_DOMAIN */
    299 
    300 #if HAVE_INCOMPATIBLE_CTIME_R
    301 #undef asctime_r
    302 #undef ctime_r
    303 char *asctime_r P((struct tm const *, char *));
    304 char *ctime_r P((time_t const *, char *));
    305 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
    306 
    307 /*
    308 ** UNIX was a registered trademark of UNIX System Laboratories in 1993.
    309 */
    310 
    311 #endif /* !defined PRIVATE_H */
    312