text: /*
   * (C)2012 Michael Duane Rice All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   * Redistributions of source code must retain the above copyright notice, this
   * list of conditions and the following disclaimer. Redistributions in binary
   * form must reproduce the above copyright notice, this list of conditions
   * and the following disclaimer in the documentation and/or other materials
   * provided with the distribution. Neither the name of the copyright holders
   * nor the names of contributors may be used to endorse or promote products
   * derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  
  /* $Id: mktime.c 2318 2013-03-30 11:59:28Z swfltek $ */
  
  /*
  	Standard mktime(). The provided broken down Local 'calendar' time is converted into
  	a binary time stamp. The process is then reversed to 'normalize' timeptr.
  */
  
  #include <time_avr.h>
  
  extern int32_t     __utc_offset;
  
  extern int      (*__dst_ptr) (const time_t_avr *, int32_t *);
  
  time_t_avr
  mktime_avr(struct tm_avr *timeptr)
  {
  	time_t_avr          ret;
  
  	ret = mk_gmtime_avr(timeptr);
  
  	if (timeptr->tm_isdst < 0) {
  		if (__dst_ptr)
  			timeptr->tm_isdst = __dst_ptr(&ret, &__utc_offset);
  	}
  	if (timeptr->tm_isdst > 0)
  		ret -= timeptr->tm_isdst;
  
  	ret -= __utc_offset;
  
  	localtime_r_avr(&ret, timeptr);
  
  	return ret;
  }
  