1178825Sdfr/* 2233294Sstas * Copyright (c) 1997, 2006 Kungliga Tekniska H��gskolan 3233294Sstas * (Royal Institute of Technology, Stockholm, Sweden). 4233294Sstas * All rights reserved. 5178825Sdfr * 6233294Sstas * Redistribution and use in source and binary forms, with or without 7233294Sstas * modification, are permitted provided that the following conditions 8233294Sstas * are met: 9178825Sdfr * 10233294Sstas * 1. Redistributions of source code must retain the above copyright 11233294Sstas * notice, this list of conditions and the following disclaimer. 12178825Sdfr * 13233294Sstas * 2. Redistributions in binary form must reproduce the above copyright 14233294Sstas * notice, this list of conditions and the following disclaimer in the 15233294Sstas * documentation and/or other materials provided with the distribution. 16178825Sdfr * 17233294Sstas * 3. Neither the name of the Institute nor the names of its contributors 18233294Sstas * may be used to endorse or promote products derived from this software 19233294Sstas * without specific prior written permission. 20178825Sdfr * 21233294Sstas * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22233294Sstas * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23233294Sstas * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24233294Sstas * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25233294Sstas * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26233294Sstas * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27233294Sstas * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28233294Sstas * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29233294Sstas * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30233294Sstas * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31233294Sstas * SUCH DAMAGE. 32178825Sdfr */ 33178825Sdfr 34178825Sdfr#include <config.h> 35178825Sdfr 36178825Sdfr#include "roken.h" 37178825Sdfr 38178825Sdfrstatic int 39178825Sdfris_leap(unsigned y) 40178825Sdfr{ 41178825Sdfr y += 1900; 42178825Sdfr return (y % 4) == 0 && ((y % 100) != 0 || (y % 400) == 0); 43178825Sdfr} 44178825Sdfr 45233294Sstas/* 46178825Sdfr * XXX This is a simplifed version of timegm, it needs to support out of 47178825Sdfr * bounds values. 48178825Sdfr */ 49178825Sdfr 50178825Sdfrtime_t 51178825Sdfrrk_timegm (struct tm *tm) 52178825Sdfr{ 53178825Sdfr static const unsigned ndays[2][12] ={ 54178825Sdfr {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}, 55178825Sdfr {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}}; 56178825Sdfr time_t res = 0; 57178825Sdfr unsigned i; 58178825Sdfr 59233294Sstas if (tm->tm_year < 0) 60178825Sdfr return -1; 61233294Sstas if (tm->tm_mon < 0 || tm->tm_mon > 11) 62178825Sdfr return -1; 63178825Sdfr if (tm->tm_mday < 1 || tm->tm_mday > ndays[is_leap(tm->tm_year)][tm->tm_mon]) 64178825Sdfr return -1; 65233294Sstas if (tm->tm_hour < 0 || tm->tm_hour > 23) 66178825Sdfr return -1; 67233294Sstas if (tm->tm_min < 0 || tm->tm_min > 59) 68178825Sdfr return -1; 69233294Sstas if (tm->tm_sec < 0 || tm->tm_sec > 59) 70178825Sdfr return -1; 71178825Sdfr 72178825Sdfr for (i = 70; i < tm->tm_year; ++i) 73178825Sdfr res += is_leap(i) ? 366 : 365; 74178825Sdfr 75178825Sdfr for (i = 0; i < tm->tm_mon; ++i) 76178825Sdfr res += ndays[is_leap(tm->tm_year)][i]; 77178825Sdfr res += tm->tm_mday - 1; 78178825Sdfr res *= 24; 79178825Sdfr res += tm->tm_hour; 80178825Sdfr res *= 60; 81178825Sdfr res += tm->tm_min; 82178825Sdfr res *= 60; 83178825Sdfr res += tm->tm_sec; 84178825Sdfr return res; 85178825Sdfr} 86