xref: /openbsd-src/lib/libc/time/private.h (revision db3296cf5c1dd9058ceecc3a29fe4aaa0bd26000)
1 /*	$OpenBSD: private.h,v 1.14 2002/04/04 19:12:09 millert Exp $	*/
2 #ifndef PRIVATE_H
3 
4 #define PRIVATE_H
5 
6 /*
7 ** This file is in the public domain, so clarified as of
8 ** 1996-06-05 by Arthur David Olson (arthur_david_olson@nih.gov).
9 */
10 
11 /* OpenBSD defaults */
12 #define TM_GMTOFF		tm_gmtoff
13 #define TM_ZONE			tm_zone
14 #define PCTS			1
15 #define XPG4_1994_04_09		1
16 #define STD_INSPIRED		1
17 #define HAVE_LONG_DOUBLE	1
18 #define HAVE_STRERROR		1
19 #define NO_RUN_TIME_WARNINGS_ABOUT_YEAR_2000_PROBLEMS_THANK_YOU	1
20 
21 /*
22 ** This header is for use ONLY with the time conversion code.
23 ** There is no guarantee that it will remain unchanged,
24 ** or that it will remain at all.
25 ** Do NOT copy it to any system include directory.
26 ** Thank you!
27 */
28 
29 /*
30 ** ID
31 */
32 
33 #if 0
34 #ifndef lint
35 #ifndef NOID
36 static char	privatehid[] = "@(#)private.h	7.52";
37 #endif /* !defined NOID */
38 #endif /* !defined lint */
39 #endif
40 
41 /*
42 ** Defaults for preprocessor symbols.
43 ** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'.
44 */
45 
46 #ifndef HAVE_ADJTIME
47 #define HAVE_ADJTIME		1
48 #endif /* !defined HAVE_ADJTIME */
49 
50 #ifndef HAVE_GETTEXT
51 #define HAVE_GETTEXT		0
52 #endif /* !defined HAVE_GETTEXT */
53 
54 #ifndef HAVE_INCOMPATIBLE_CTIME_R
55 #define HAVE_INCOMPATIBLE_CTIME_R	0
56 #endif /* !defined INCOMPATIBLE_CTIME_R */
57 
58 #ifndef HAVE_SETTIMEOFDAY
59 #define HAVE_SETTIMEOFDAY	3
60 #endif /* !defined HAVE_SETTIMEOFDAY */
61 
62 #ifndef HAVE_STRERROR
63 #define HAVE_STRERROR		1
64 #endif /* !defined HAVE_STRERROR */
65 
66 #ifndef HAVE_SYMLINK
67 #define HAVE_SYMLINK		1
68 #endif /* !defined HAVE_SYMLINK */
69 
70 #ifndef HAVE_SYS_STAT_H
71 #define HAVE_SYS_STAT_H		1
72 #endif /* !defined HAVE_SYS_STAT_H */
73 
74 #ifndef HAVE_SYS_WAIT_H
75 #define HAVE_SYS_WAIT_H		1
76 #endif /* !defined HAVE_SYS_WAIT_H */
77 
78 #ifndef HAVE_UNISTD_H
79 #define HAVE_UNISTD_H		1
80 #endif /* !defined HAVE_UNISTD_H */
81 
82 #ifndef HAVE_UTMPX_H
83 #define HAVE_UTMPX_H		0
84 #endif /* !defined HAVE_UTMPX_H */
85 
86 #if 0
87 #ifndef LOCALE_HOME
88 #define LOCALE_HOME		"/usr/share/locale"
89 #endif /* !defined LOCALE_HOME */
90 #endif
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 */
106 #include "time.h"
107 #include "stdlib.h"
108 
109 #if HAVE_GETTEXT - 0
110 #include "libintl.h"
111 #endif /* HAVE_GETTEXT - 0 */
112 
113 #if HAVE_SYS_WAIT_H - 0
114 #include <sys/wait.h>	/* for WIFEXITED and WEXITSTATUS */
115 #endif /* HAVE_SYS_WAIT_H - 0 */
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 - 0
125 #include "unistd.h"	/* for F_OK and R_OK */
126 #endif /* HAVE_UNISTD_H - 0 */
127 
128 #if !(HAVE_UNISTD_H - 0)
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 - 0) */
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 ** Workarounds for compilers/systems.
142 */
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 remove
199 extern int	unlink P((const char * filename));
200 #define remove	unlink
201 #endif /* !defined remove */
202 
203 #if 0
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 #endif
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 
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