1/*- 2 * See the file LICENSE for redistribution information. 3 * 4 * Copyright (c) 2001,2008 Oracle. All rights reserved. 5 * 6 * $Id: ctime.c,v 1.8 2008/01/08 20:58:44 bostic Exp $ 7 */ 8 9#include "db_config.h" 10 11#include "db_int.h" 12 13static void __os_brew_ct_numb __P((char *, int)); 14 15/* 16 * __os_ctime -- 17 * Format a time-stamp. 18 */ 19char * 20__os_ctime(tod, time_buf) 21 const time_t *tod; 22 char *time_buf; 23{ 24 JulianType jt; 25 time_t tt; 26 char *ncp; 27 28 strcpy(time_buf, "Thu Jan 01 00:00:00 1970"); 29 time_buf[CTIME_BUFLEN - 1] = '\0'; 30 31 /* 32 * Berkeley DB uses POSIX time values internally, convert to a BREW 33 * time value. 34 */ 35 tt = *tod - BREW_EPOCH_OFFSET + LOCALTIMEOFFSET(NULL); 36 GETJULIANDATE(tt, &jt); 37 38 /* 39 * wWeekDay : Day of the week 0-6 (0=Monday, 6=Sunday) 40 */ 41 ncp = &"MonTueWedThuFriSatSun"[jt.wWeekDay*3]; 42 time_buf[0] = *ncp++; 43 time_buf[1] = *ncp++; 44 time_buf[2] = *ncp; 45 ncp = &"JanFebMarAprMayJunJulAugSepOctNovDec"[(jt.wMonth - 1) * 3]; 46 time_buf[4] = *ncp++; 47 time_buf[5] = *ncp++; 48 time_buf[6] = *ncp; 49 50 __os_brew_ct_numb(time_buf + 8, jt.wDay); 51 /* Add 100 to keep the leading zero. */ 52 __os_brew_ct_numb(time_buf + 11, jt.wHour + 100); 53 __os_brew_ct_numb(time_buf + 14, jt.wMinute + 100); 54 __os_brew_ct_numb(time_buf + 17, jt.wSecond + 100); 55 56 if (jt.wYear < 100) { /* 9 99 */ 57 time_buf[20] = ' '; 58 time_buf[21] = ' '; 59 __os_brew_ct_numb(time_buf + 22, jt.wYear); 60 } else { /* 99 1999 */ 61 __os_brew_ct_numb(time_buf + 20, jt.wYear / 100); 62 __os_brew_ct_numb(time_buf + 22, jt.wYear % 100 + 100); 63 } 64 65 return (time_buf); 66} 67 68/* 69 * __os_brew_ct_numb -- 70 * Append ASCII representations for two digits to a string. 71 */ 72static void 73__os_brew_ct_numb(cp, n) 74 char *cp; 75 int n; 76{ 77 cp[0] = ' '; 78 if (n >= 10) 79 cp[0] = (n / 10) % 10 + '0'; 80 cp[1] = n % 10 + '0'; 81} 82