| 0,0 → 1,69 |
|---|
| /**************************************************************************** |
| * |
| * Open Watcom Project |
| * |
| * Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved. |
| * |
| * ======================================================================== |
| * |
| * This file contains Original Code and/or Modifications of Original |
| * Code as defined in and that are subject to the Sybase Open Watcom |
| * Public License version 1.0 (the 'License'). You may not use this file |
| * except in compliance with the License. BY USING THIS FILE YOU AGREE TO |
| * ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is |
| * provided with the Original Code and Modifications, and is also |
| * available at www.sybase.com/developer/opensource. |
| * |
| * The Original Code and all software distributed under the License are |
| * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| * EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM |
| * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR |
| * NON-INFRINGEMENT. Please see the License for the specific language |
| * governing rights and limitations under the License. |
| * |
| * ======================================================================== |
| * |
| * Description: Platform independent mktime() implementation. |
| * |
| ****************************************************************************/ |
| |
| #include "variety.h" |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <time.h> |
| #include <limits.h> |
| #include "rtdata.h" |
| #include "timedata.h" |
| |
| _WCRTLINK time_t mktime( struct tm *t ) |
| { |
| long days; |
| long seconds; |
| long day_seconds; |
| |
| seconds = __local_mktime( t, &days, &day_seconds ); |
| __brktime( (unsigned long) days, (time_t) day_seconds, 0L, t ); |
| tzset(); |
| seconds += _RWD_timezone; /* add in seconds from GMT */ |
| #ifdef __LINUX__ |
| if( t->tm_isdst < 0 ) |
| __check_tzfile( seconds, t ); |
| #endif |
| /* if we are in d.s.t. then subtract __dst_adjust from seconds */ |
| if( __isindst( t ) ) /* - determine if we are in d.s.t. */ |
| seconds -= _RWD_dst_adjust; |
| #ifdef __UNIX__ /* time_t is signed */ |
| if( seconds < 0 ) |
| return( ( time_t ) -1 ); |
| #else /* time_t is unsigned, special day check needed for 31 dec 1969 */ |
| /* check for overflow; days == 75277 && seconds == 23296 returns 0, but |
| adjusted for dst may still be fine */ |
| if( days >= 75279 || |
| ( seconds >= 0 && days >= 75276 ) || |
| ( seconds < 0 && days <= DAYS_FROM_1900_TO_1970 ) ) |
| return( (time_t) -1 ); |
| /* 0 is year = 206, mon = 1, mday = 7, hour = 6, min = 28, sec = 16 */ |
| #endif |
| return( ( time_t ) seconds ); |
| } |