Files
cpython-source-deps/os_brew/ctime.c
2017-09-04 13:40:25 -05:00

82 lines
1.7 KiB
C

/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2001,2008 Oracle. All rights reserved.
*
* $Id: ctime.c 63573 2008-05-23 21:43:21Z trent.nelson $
*/
#include "db_config.h"
#include "db_int.h"
static void __os_brew_ct_numb __P((char *, int));
/*
* __os_ctime --
* Format a time-stamp.
*/
char *
__os_ctime(tod, time_buf)
const time_t *tod;
char *time_buf;
{
JulianType jt;
time_t tt;
char *ncp;
strcpy(time_buf, "Thu Jan 01 00:00:00 1970");
time_buf[CTIME_BUFLEN - 1] = '\0';
/*
* Berkeley DB uses POSIX time values internally, convert to a BREW
* time value.
*/
tt = *tod - BREW_EPOCH_OFFSET + LOCALTIMEOFFSET(NULL);
GETJULIANDATE(tt, &jt);
/*
* wWeekDay : Day of the week 0-6 (0=Monday, 6=Sunday)
*/
ncp = &"MonTueWedThuFriSatSun"[jt.wWeekDay*3];
time_buf[0] = *ncp++;
time_buf[1] = *ncp++;
time_buf[2] = *ncp;
ncp = &"JanFebMarAprMayJunJulAugSepOctNovDec"[(jt.wMonth - 1) * 3];
time_buf[4] = *ncp++;
time_buf[5] = *ncp++;
time_buf[6] = *ncp;
__os_brew_ct_numb(time_buf + 8, jt.wDay);
/* Add 100 to keep the leading zero. */
__os_brew_ct_numb(time_buf + 11, jt.wHour + 100);
__os_brew_ct_numb(time_buf + 14, jt.wMinute + 100);
__os_brew_ct_numb(time_buf + 17, jt.wSecond + 100);
if (jt.wYear < 100) { /* 9 99 */
time_buf[20] = ' ';
time_buf[21] = ' ';
__os_brew_ct_numb(time_buf + 22, jt.wYear);
} else { /* 99 1999 */
__os_brew_ct_numb(time_buf + 20, jt.wYear / 100);
__os_brew_ct_numb(time_buf + 22, jt.wYear % 100 + 100);
}
return (time_buf);
}
/*
* __os_brew_ct_numb --
* Append ASCII representations for two digits to a string.
*/
static void
__os_brew_ct_numb(cp, n)
char *cp;
int n;
{
cp[0] = ' ';
if (n >= 10)
cp[0] = (n / 10) % 10 + '0';
cp[1] = n % 10 + '0';
}