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private.h revision 1.1.1.11 
      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 (arthur_david_olson (at) nih.gov).
      8 */
      9 
     10 /*
     11 ** This header is for use ONLY with the time conversion code.
     12 ** There is no guarantee that it will remain unchanged,
     13 ** or that it will remain at all.
     14 ** Do NOT copy it to any system include directory.
     15 ** Thank you!
     16 */
     17 
     18 /*
     19 ** ID
     20 */
     21 
     22 #ifndef lint
     23 #ifndef NOID
     24 static char	privatehid[] = "@(#)private.h	7.52";
     25 #endif /* !defined NOID */
     26 #endif /* !defined lint */
     27 
     28 /*
     29 ** Defaults for preprocessor symbols.
     30 ** You can override these in your C compiler options, e.g. `-DHAVE_ADJTIME=0'.
     31 */
     32 
     33 #ifndef HAVE_ADJTIME
     34 #define HAVE_ADJTIME		1
     35 #endif /* !defined HAVE_ADJTIME */
     36 
     37 #ifndef HAVE_GETTEXT
     38 #define HAVE_GETTEXT		0
     39 #endif /* !defined HAVE_GETTEXT */
     40 
     41 #ifndef HAVE_INCOMPATIBLE_CTIME_R
     42 #define HAVE_INCOMPATIBLE_CTIME_R	0
     43 #endif /* !defined INCOMPATIBLE_CTIME_R */
     44 
     45 #ifndef HAVE_SETTIMEOFDAY
     46 #define HAVE_SETTIMEOFDAY	3
     47 #endif /* !defined HAVE_SETTIMEOFDAY */
     48 
     49 #ifndef HAVE_STRERROR
     50 #define HAVE_STRERROR		1
     51 #endif /* !defined HAVE_STRERROR */
     52 
     53 #ifndef HAVE_SYMLINK
     54 #define HAVE_SYMLINK		1
     55 #endif /* !defined HAVE_SYMLINK */
     56 
     57 #ifndef HAVE_SYS_STAT_H
     58 #define HAVE_SYS_STAT_H		1
     59 #endif /* !defined HAVE_SYS_STAT_H */
     60 
     61 #ifndef HAVE_SYS_WAIT_H
     62 #define HAVE_SYS_WAIT_H		1
     63 #endif /* !defined HAVE_SYS_WAIT_H */
     64 
     65 #ifndef HAVE_UNISTD_H
     66 #define HAVE_UNISTD_H		1
     67 #endif /* !defined HAVE_UNISTD_H */
     68 
     69 #ifndef HAVE_UTMPX_H
     70 #define HAVE_UTMPX_H		0
     71 #endif /* !defined HAVE_UTMPX_H */
     72 
     73 #ifndef LOCALE_HOME
     74 #define LOCALE_HOME		"/usr/lib/locale"
     75 #endif /* !defined LOCALE_HOME */
     76 
     77 #if HAVE_INCOMPATIBLE_CTIME_R
     78 #define asctime_r _incompatible_asctime_r
     79 #define ctime_r _incompatible_ctime_r
     80 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
     81 
     82 /*
     83 ** Nested includes
     84 */
     85 
     86 #include "sys/types.h"	/* for time_t */
     87 #include "stdio.h"
     88 #include "errno.h"
     89 #include "string.h"
     90 #include "limits.h"	/* for CHAR_BIT */
     91 #include "time.h"
     92 #include "stdlib.h"
     93 
     94 #if HAVE_GETTEXT - 0
     95 #include "libintl.h"
     96 #endif /* HAVE_GETTEXT - 0 */
     97 
     98 #if HAVE_SYS_WAIT_H - 0
     99 #include <sys/wait.h>	/* for WIFEXITED and WEXITSTATUS */
    100 #endif /* HAVE_SYS_WAIT_H - 0 */
    101 
    102 #ifndef WIFEXITED
    103 #define WIFEXITED(status)	(((status) & 0xff) == 0)
    104 #endif /* !defined WIFEXITED */
    105 #ifndef WEXITSTATUS
    106 #define WEXITSTATUS(status)	(((status) >> 8) & 0xff)
    107 #endif /* !defined WEXITSTATUS */
    108 
    109 #if HAVE_UNISTD_H - 0
    110 #include "unistd.h"	/* for F_OK and R_OK */
    111 #endif /* HAVE_UNISTD_H - 0 */
    112 
    113 #if !(HAVE_UNISTD_H - 0)
    114 #ifndef F_OK
    115 #define F_OK	0
    116 #endif /* !defined F_OK */
    117 #ifndef R_OK
    118 #define R_OK	4
    119 #endif /* !defined R_OK */
    120 #endif /* !(HAVE_UNISTD_H - 0) */
    121 
    122 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX.  */
    123 #define is_digit(c) ((unsigned)(c) - '0' <= 9)
    124 
    125 /*
    126 ** Workarounds for compilers/systems.
    127 */
    128 
    129 /*
    130 ** SunOS 4.1.1 cc lacks prototypes.
    131 */
    132 
    133 #ifndef P
    134 #ifdef __STDC__
    135 #define P(x)	x
    136 #endif /* defined __STDC__ */
    137 #ifndef __STDC__
    138 #define P(x)	()
    139 #endif /* !defined __STDC__ */
    140 #endif /* !defined P */
    141 
    142 /*
    143 ** SunOS 4.1.1 headers lack EXIT_SUCCESS.
    144 */
    145 
    146 #ifndef EXIT_SUCCESS
    147 #define EXIT_SUCCESS	0
    148 #endif /* !defined EXIT_SUCCESS */
    149 
    150 /*
    151 ** SunOS 4.1.1 headers lack EXIT_FAILURE.
    152 */
    153 
    154 #ifndef EXIT_FAILURE
    155 #define EXIT_FAILURE	1
    156 #endif /* !defined EXIT_FAILURE */
    157 
    158 /*
    159 ** SunOS 4.1.1 headers lack FILENAME_MAX.
    160 */
    161 
    162 #ifndef FILENAME_MAX
    163 
    164 #ifndef MAXPATHLEN
    165 #ifdef unix
    166 #include "sys/param.h"
    167 #endif /* defined unix */
    168 #endif /* !defined MAXPATHLEN */
    169 
    170 #ifdef MAXPATHLEN
    171 #define FILENAME_MAX	MAXPATHLEN
    172 #endif /* defined MAXPATHLEN */
    173 #ifndef MAXPATHLEN
    174 #define FILENAME_MAX	1024		/* Pure guesswork */
    175 #endif /* !defined MAXPATHLEN */
    176 
    177 #endif /* !defined FILENAME_MAX */
    178 
    179 /*
    180 ** SunOS 4.1.1 libraries lack remove.
    181 */
    182 
    183 #ifndef remove
    184 extern int	unlink P((const char * filename));
    185 #define remove	unlink
    186 #endif /* !defined remove */
    187 
    188 /*
    189 ** Some ancient errno.h implementations don't declare errno.
    190 ** But some newer errno.h implementations define it as a macro.
    191 ** Fix the former without affecting the latter.
    192 */
    193 #ifndef errno
    194 extern int errno;
    195 #endif /* !defined errno */
    196 
    197 /*
    198 ** Private function declarations.
    199 */
    200 char *	icalloc P((int nelem, int elsize));
    201 char *	icatalloc P((char * old, const char * new));
    202 char *	icpyalloc P((const char * string));
    203 char *	imalloc P((int n));
    204 void *	irealloc P((void * pointer, int size));
    205 void	icfree P((char * pointer));
    206 void	ifree P((char * pointer));
    207 char *	scheck P((const char *string, const char *format));
    208 
    209 
    210 /*
    211 ** Finally, some convenience items.
    212 */
    213 
    214 #ifndef TRUE
    215 #define TRUE	1
    216 #endif /* !defined TRUE */
    217 
    218 #ifndef FALSE
    219 #define FALSE	0
    220 #endif /* !defined FALSE */
    221 
    222 #ifndef TYPE_BIT
    223 #define TYPE_BIT(type)	(sizeof (type) * CHAR_BIT)
    224 #endif /* !defined TYPE_BIT */
    225 
    226 #ifndef TYPE_SIGNED
    227 #define TYPE_SIGNED(type) (((type) -1) < 0)
    228 #endif /* !defined TYPE_SIGNED */
    229 
    230 #ifndef INT_STRLEN_MAXIMUM
    231 /*
    232 ** 302 / 1000 is log10(2.0) rounded up.
    233 ** Subtract one for the sign bit if the type is signed;
    234 ** add one for integer division truncation;
    235 ** add one more for a minus sign if the type is signed.
    236 */
    237 #define INT_STRLEN_MAXIMUM(type) \
    238     ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + 1 + TYPE_SIGNED(type))
    239 #endif /* !defined INT_STRLEN_MAXIMUM */
    240 
    241 /*
    242 ** INITIALIZE(x)
    243 */
    244 
    245 #ifndef GNUC_or_lint
    246 #ifdef lint
    247 #define GNUC_or_lint
    248 #endif /* defined lint */
    249 #ifndef lint
    250 #ifdef __GNUC__
    251 #define GNUC_or_lint
    252 #endif /* defined __GNUC__ */
    253 #endif /* !defined lint */
    254 #endif /* !defined GNUC_or_lint */
    255 
    256 #ifndef INITIALIZE
    257 #ifdef GNUC_or_lint
    258 #define INITIALIZE(x)	((x) = 0)
    259 #endif /* defined GNUC_or_lint */
    260 #ifndef GNUC_or_lint
    261 #define INITIALIZE(x)
    262 #endif /* !defined GNUC_or_lint */
    263 #endif /* !defined INITIALIZE */
    264 
    265 /*
    266 ** For the benefit of GNU folk...
    267 ** `_(MSGID)' uses the current locale's message library string for MSGID.
    268 ** The default is to use gettext if available, and use MSGID otherwise.
    269 */
    270 
    271 #ifndef _
    272 #if HAVE_GETTEXT - 0
    273 #define _(msgid) gettext(msgid)
    274 #else /* !(HAVE_GETTEXT - 0) */
    275 #define _(msgid) msgid
    276 #endif /* !(HAVE_GETTEXT - 0) */
    277 #endif /* !defined _ */
    278 
    279 #ifndef TZ_DOMAIN
    280 #define TZ_DOMAIN "tz"
    281 #endif /* !defined TZ_DOMAIN */
    282 
    283 #if HAVE_INCOMPATIBLE_CTIME_R
    284 #undef asctime_r
    285 #undef ctime_r
    286 char *asctime_r P((struct tm const *, char *));
    287 char *ctime_r P((time_t const *, char *));
    288 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
    289 
    290 /*
    291 ** UNIX was a registered trademark of UNIX System Laboratories in 1993.
    292 */
    293 
    294 #endif /* !defined PRIVATE_H */
    295