usr.bin/at/stime.h

   1 /*      $NetBSD: stime.h,v 1.3 2005/02/17 16:56:10 xtraeme Exp $        */
   2
   3 /*
   4  * Copyright (c) 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #ifndef _STIME_H_
  33 #define _STIME_H_
  34
  35 /*
  36  * Convert a 2-digit year to a valid year as:
  37  *   00-68 <-> 2000-2068
  38  *   69-99 <-> 1969-1999
  39  *
  40  * Note: We choose the earliest year as 1969 rather than 1970 so that
  41  * dates near the Epoch (Jan 1, 1970 00:00:00 UTC) can be represented
  42  * with 2-digit years in all time zones.  This is the convention used
  43  * in parsedate(3), though it is not consistently applied in the
  44  * source tree.
  45  *
  46  * XXX - move this (or something like it) to time.h and use it
  47  *       consistently in the tree.
  48  */
  49 #define conv_2dig_year(y) ((y) < 69 ? (y) + 2000 : (y) + 1900)
  50
  51 time_t  stime(char *);
  52
  53 #endif /* _STIME_H_ */