78 lines
1.9 KiB
C
Executable File
78 lines
1.9 KiB
C
Executable File
/* Copyright (c) 1988 AT&T */
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/* All Rights Reserved */
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
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/* The copyright notice above does not evidence any */
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/* actual or intended publication of such source code. */
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#ident "@(#)cftime.c 1.8 92/09/05 SMI" /* SVr4.0 1.15 */
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/*LINTLIBRARY*/
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/*
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* This routine converts time as follows. The epoch is 0000 Jan 1
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* 1970 GMT. The argument time is in seconds since then. The
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* localtime(t) entry returns a pointer to an array containing:
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*
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* seconds (0-59)
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* minutes (0-59)
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* hours (0-23)
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* day of month (1-31)
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* month (0-11)
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* year
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* weekday (0-6, Sun is 0)
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* day of the year
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* daylight savings flag
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*
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* The routine corrects for daylight saving time and will work in
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* any time zone provided "timezone" is adjusted to the difference
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* between Greenwich and local standard time (measured in seconds).
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*
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* ascftime(buf, format, t) -> where t is produced by localtime
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* and returns a ptr to a character
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* string that has the ascii time in
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* the format specified by the format
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* argument (see date(1) for format
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* syntax).
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*
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* cftime(buf, format, t) -> just calls ascftime.
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*
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*
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*
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*/
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#ifdef __STDC__
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#pragma weak ascftime = _ascftime
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#pragma weak cftime = _cftime
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#endif
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#include "synonyms.h"
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#include <stddef.h>
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#include <time.h>
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#include <limits.h>
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#include <stdlib.h>
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#include <thread.h>
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#include <synch.h>
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#include <mtlib.h>
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int
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cftime(buf, format, t)
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char *buf;
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char *format;
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const time_t *t;
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{
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return(ascftime(buf, format, localtime(t)));
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}
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int
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ascftime(buf, format, tm)
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char *buf;
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const char *format;
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const struct tm *tm;
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{
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/* Set format string, if not already set */
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if (format == NULL || *format == '\0')
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if (((format = getenv("CFTIME")) == 0) || *format == 0)
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format = "%C";
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return(strftime(buf, LONG_MAX, format, tm));
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}
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