xref: /dragonfly/lib/libc/stdtime/private.h (revision 0dace59e)
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.
8 **
9 ** $FreeBSD: head/contrib/tzcode/stdtime/private.h 192625 2009-05-23 06:31:50Z edwin $
10 */
11 
12 /* Stuff moved from Makefile.inc to reduce clutter */
13 #ifndef TM_GMTOFF
14 #define TM_GMTOFF	tm_gmtoff
15 #define TM_ZONE		tm_zone
16 #define STD_INSPIRED	1
17 #define PCTS		1
18 #define HAVE_LONG_DOUBLE 1
19 #define HAVE_STRERROR	1
20 #define	HAVE_UNISTD_H	1
21 #define	LOCALE_HOME	_PATH_LOCALE
22 #define TZDIR		"/usr/share/zoneinfo"
23 #endif /* ndef TM_GMTOFF */
24 
25 /*
26 ** This header is for use ONLY with the time conversion code.
27 ** There is no guarantee that it will remain unchanged,
28 ** or that it will remain at all.
29 ** Do NOT copy it to any system include directory.
30 ** Thank you!
31 */
32 
33 /*
34 ** ID
35 */
36 
37 #ifndef lint
38 #ifndef NOID
39 /*
40 static char	privatehid[] = "@(#)private.h	8.6";
41 */
42 #endif /* !defined NOID */
43 #endif /* !defined lint */
44 
45 #define GRANDPARENTED	"Local time zone must be set--see zic manual page"
46 
47 /*
48 ** Defaults for preprocessor symbols.
49 ** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'.
50 */
51 
52 #ifndef HAVE_ADJTIME
53 #define HAVE_ADJTIME		1
54 #endif /* !defined HAVE_ADJTIME */
55 
56 #ifndef HAVE_GETTEXT
57 #define HAVE_GETTEXT		0
58 #endif /* !defined HAVE_GETTEXT */
59 
60 #ifndef HAVE_INCOMPATIBLE_CTIME_R
61 #define HAVE_INCOMPATIBLE_CTIME_R	0
62 #endif /* !defined INCOMPATIBLE_CTIME_R */
63 
64 #ifndef HAVE_SETTIMEOFDAY
65 #define HAVE_SETTIMEOFDAY	3
66 #endif /* !defined HAVE_SETTIMEOFDAY */
67 
68 #ifndef HAVE_SYMLINK
69 #define HAVE_SYMLINK		1
70 #endif /* !defined HAVE_SYMLINK */
71 
72 #ifndef HAVE_SYS_STAT_H
73 #define HAVE_SYS_STAT_H		1
74 #endif /* !defined HAVE_SYS_STAT_H */
75 
76 #ifndef HAVE_SYS_WAIT_H
77 #define HAVE_SYS_WAIT_H		1
78 #endif /* !defined HAVE_SYS_WAIT_H */
79 
80 #ifndef HAVE_UNISTD_H
81 #define HAVE_UNISTD_H		1
82 #endif /* !defined HAVE_UNISTD_H */
83 
84 #ifndef HAVE_UTMPX_H
85 #define HAVE_UTMPX_H		0
86 #endif /* !defined HAVE_UTMPX_H */
87 
88 #ifndef LOCALE_HOME
89 #define LOCALE_HOME		"/usr/lib/locale"
90 #endif /* !defined LOCALE_HOME */
91 
92 #if HAVE_INCOMPATIBLE_CTIME_R
93 #define asctime_r _incompatible_asctime_r
94 #define ctime_r _incompatible_ctime_r
95 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
96 
97 /*
98 ** Nested includes
99 */
100 
101 #include "sys/types.h"	/* for time_t */
102 #include "stdio.h"
103 #include "errno.h"
104 #include "string.h"
105 #include "limits.h"	/* for CHAR_BIT et al. */
106 #include "time.h"
107 #include "stdlib.h"
108 
109 #if HAVE_GETTEXT
110 #include "libintl.h"
111 #endif /* HAVE_GETTEXT */
112 
113 #if HAVE_SYS_WAIT_H
114 #include <sys/wait.h>	/* for WIFEXITED and WEXITSTATUS */
115 #endif /* HAVE_SYS_WAIT_H */
116 
117 #ifndef WIFEXITED
118 #define WIFEXITED(status)	(((status) & 0xff) == 0)
119 #endif /* !defined WIFEXITED */
120 #ifndef WEXITSTATUS
121 #define WEXITSTATUS(status)	(((status) >> 8) & 0xff)
122 #endif /* !defined WEXITSTATUS */
123 
124 #if HAVE_UNISTD_H
125 #include "unistd.h"	/* for F_OK, R_OK, and other POSIX goodness */
126 #endif /* HAVE_UNISTD_H */
127 
128 #if !(HAVE_UNISTD_H)
129 #ifndef F_OK
130 #define F_OK	0
131 #endif /* !defined F_OK */
132 #ifndef R_OK
133 #define R_OK	4
134 #endif /* !defined R_OK */
135 #endif /* !(HAVE_UNISTD_H) */
136 
137 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */
138 #define is_digit(c) ((unsigned)(c) - '0' <= 9)
139 
140 /*
141 ** Define HAVE_STDINT_H's default value here, rather than at the
142 ** start, since __GLIBC__'s value depends on previously-included
143 ** files.
144 ** (glibc 2.1 and later have stdint.h, even with pre-C99 compilers.)
145 */
146 #ifndef HAVE_STDINT_H
147 #define HAVE_STDINT_H \
148 	(199901 <= __STDC_VERSION__ || \
149 	2 < (__GLIBC__ + (0 < __GLIBC_MINOR__)))
150 #endif /* !defined HAVE_STDINT_H */
151 
152 #if HAVE_STDINT_H
153 #include "stdint.h"
154 #endif /* !HAVE_STDINT_H */
155 
156 #ifndef INT_FAST64_MAX
157 /* Pre-C99 GCC compilers define __LONG_LONG_MAX__ instead of LLONG_MAX.  */
158 #if defined LLONG_MAX || defined __LONG_LONG_MAX__
159 typedef long long	int_fast64_t;
160 #else /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */
161 #if (LONG_MAX >> 31) < 0xffffffff
162 Please use a compiler that supports a 64-bit integer type (or wider);
163 you may need to compile with "-DHAVE_STDINT_H".
164 #endif /* (LONG_MAX >> 31) < 0xffffffff */
165 typedef long		int_fast64_t;
166 #endif /* ! (defined LLONG_MAX || defined __LONG_LONG_MAX__) */
167 #endif /* !defined INT_FAST64_MAX */
168 
169 #ifndef INT32_MAX
170 #define INT32_MAX 0x7fffffff
171 #endif /* !defined INT32_MAX */
172 #ifndef INT32_MIN
173 #define INT32_MIN (-1 - INT32_MAX)
174 #endif /* !defined INT32_MIN */
175 
176 /*
177 ** Workarounds for compilers/systems.
178 */
179 
180 /*
181 ** Some time.h implementations don't declare asctime_r.
182 ** Others might define it as a macro.
183 ** Fix the former without affecting the latter.
184 */
185 
186 #ifndef asctime_r
187 extern char *	asctime_r(struct tm const *, char *);
188 #endif
189 
190 /*
191 ** Private function declarations.
192 */
193 
194 char *		icalloc(int nelem, int elsize);
195 char *		icatalloc(char * old, const char * new);
196 char *		icpyalloc(const char * string);
197 char *		imalloc(int n);
198 void *		irealloc(void * pointer, int size);
199 void		icfree(char * pointer);
200 void		ifree(char * pointer);
201 const char *	scheck(const char * string, const char * format);
202 
203 /*
204 ** Finally, some convenience items.
205 */
206 
207 #ifndef TRUE
208 #define TRUE	1
209 #endif /* !defined TRUE */
210 
211 #ifndef FALSE
212 #define FALSE	0
213 #endif /* !defined FALSE */
214 
215 #ifndef TYPE_BIT
216 #define TYPE_BIT(type)	(sizeof (type) * CHAR_BIT)
217 #endif /* !defined TYPE_BIT */
218 
219 #ifndef TYPE_SIGNED
220 #define TYPE_SIGNED(type) (((type) -1) < 0)
221 #endif /* !defined TYPE_SIGNED */
222 
223 /*
224 ** Since the definition of TYPE_INTEGRAL contains floating point numbers,
225 ** it cannot be used in preprocessor directives.
226 */
227 
228 #ifndef TYPE_INTEGRAL
229 #define	TYPE_INTEGRAL(type) (((type) 0.5) != 0.5)
230 #endif /* !defined TYPE_INTEGRAL */
231 
232 /*
233 ** Since the definition of TYPE_INTEGRAL contains floating point numbers,
234 ** it cannot be used in preprocessor directives.
235 */
236 
237 #ifndef TYPE_INTEGRAL
238 #define TYPE_INTEGRAL(type) (((type) 0.5) != 0.5)
239 #endif /* !defined TYPE_INTEGRAL */
240 
241 #ifndef INT_STRLEN_MAXIMUM
242 /*
243 ** 302 / 1000 is log10(2.0) rounded up.
244 ** Subtract one for the sign bit if the type is signed;
245 ** add one for integer division truncation;
246 ** add one more for a minus sign if the type is signed.
247 */
248 #define INT_STRLEN_MAXIMUM(type) \
249 	((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \
250 	1 + TYPE_SIGNED(type))
251 #endif /* !defined INT_STRLEN_MAXIMUM */
252 
253 /*
254 ** INITIALIZE(x)
255 */
256 
257 #ifndef GNUC_or_lint
258 #ifdef lint
259 #define GNUC_or_lint
260 #endif /* defined lint */
261 #ifndef lint
262 #ifdef __GNUC__
263 #define GNUC_or_lint
264 #endif /* defined __GNUC__ */
265 #endif /* !defined lint */
266 #endif /* !defined GNUC_or_lint */
267 
268 #ifndef INITIALIZE
269 #ifdef GNUC_or_lint
270 #define INITIALIZE(x)	((x) = 0)
271 #endif /* defined GNUC_or_lint */
272 #ifndef GNUC_or_lint
273 #define INITIALIZE(x)
274 #endif /* !defined GNUC_or_lint */
275 #endif /* !defined INITIALIZE */
276 
277 /*
278 ** For the benefit of GNU folk...
279 ** `_(MSGID)' uses the current locale's message library string for MSGID.
280 ** The default is to use gettext if available, and use MSGID otherwise.
281 */
282 
283 #ifndef _
284 #if HAVE_GETTEXT
285 #define _(msgid) gettext(msgid)
286 #else /* !HAVE_GETTEXT */
287 #define _(msgid) msgid
288 #endif /* !HAVE_GETTEXT */
289 #endif /* !defined _ */
290 
291 #ifndef TZ_DOMAIN
292 #define TZ_DOMAIN "tz"
293 #endif /* !defined TZ_DOMAIN */
294 
295 #if HAVE_INCOMPATIBLE_CTIME_R
296 #undef asctime_r
297 #undef ctime_r
298 char *asctime_r(struct tm const *, char *);
299 char *ctime_r(time_t const *, char *);
300 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
301 
302 #ifndef YEARSPERREPEAT
303 #define YEARSPERREPEAT		400	/* years before a Gregorian repeat */
304 #endif /* !defined YEARSPERREPEAT */
305 
306 /*
307 ** The Gregorian year averages 365.2425 days, which is 31556952 seconds.
308 */
309 
310 #ifndef AVGSECSPERYEAR
311 #define AVGSECSPERYEAR		31556952L
312 #endif /* !defined AVGSECSPERYEAR */
313 
314 #ifndef SECSPERREPEAT
315 #define SECSPERREPEAT		((int_fast64_t) YEARSPERREPEAT * (int_fast64_t) AVGSECSPERYEAR)
316 #endif /* !defined SECSPERREPEAT */
317 
318 #ifndef SECSPERREPEAT_BITS
319 #define SECSPERREPEAT_BITS	34	/* ceil(log2(SECSPERREPEAT)) */
320 #endif /* !defined SECSPERREPEAT_BITS */
321 
322 /*
323 ** UNIX was a registered trademark of The Open Group in 2003.
324 */
325 
326 #endif /* !defined PRIVATE_H */
327