projects / z180-stamp.git / blame
| Commit | Line | Data |
|---|---|---|
| e63b2f75 L |
1 | /* |
| 2 | * (C)2012 Michael Duane Rice All rights reserved. | |
| 3 | * | |
| 4 | * Redistribution and use in source and binary forms, with or without | |
| 5 | * modification, are permitted provided that the following conditions are | |
| 6 | * met: | |
| 7 | * | |
| 8 | * Redistributions of source code must retain the above copyright notice, this | |
| 9 | * list of conditions and the following disclaimer. Redistributions in binary | |
| 10 | * form must reproduce the above copyright notice, this list of conditions | |
| 11 | * and the following disclaimer in the documentation and/or other materials | |
| 12 | * provided with the distribution. Neither the name of the copyright holders | |
| 13 | * nor the names of contributors may be used to endorse or promote products | |
| 14 | * derived from this software without specific prior written permission. | |
| 15 | * | |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
| 20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 26 | * POSSIBILITY OF SUCH DAMAGE. | |
| 27 | */ | |
| 28 | ||
| 29 | /* $Id: mktime.c 2318 2013-03-30 11:59:28Z swfltek $ */ | |
| 30 | ||
| 31 | /* | |
| 32 | Standard mktime(). The provided broken down Local 'calendar' time is converted into | |
| 33 | a binary time stamp. The process is then reversed to 'normalize' timeptr. | |
| 34 | */ | |
| 35 | ||
| 36 | #include <time.h> | |
| 37 | ||
| 38 | extern long __utc_offset; | |
| 39 | ||
| 40 | extern int (*__dst_ptr) (const time_t *, int32_t *); | |
| 41 | ||
| 42 | time_t | |
| 43 | mktime(struct tm * timeptr) | |
| 44 | { | |
| 45 | time_t ret; | |
| 46 | ||
| 47 | ret = mk_gmtime(timeptr); | |
| 48 | ||
| 49 | if (timeptr->tm_isdst < 0) { | |
| 50 | if (__dst_ptr) | |
| 51 | timeptr->tm_isdst = __dst_ptr(&ret, &__utc_offset); | |
| 52 | } | |
| 53 | if (timeptr->tm_isdst > 0) | |
| 54 | ret -= timeptr->tm_isdst; | |
| 55 | ||
| 56 | ret -= __utc_offset; | |
| 57 | ||
| 58 | localtime_r(&ret, timeptr); | |
| 59 | ||
| 60 | return ret; | |
| 61 | } |