1135446Strhodes/* 2234010Sdougb * Copyright (C) 2004-2007, 2012 Internet Systems Consortium, Inc. ("ISC") 3135446Strhodes * Copyright (C) 1999-2001 Internet Software Consortium. 4135446Strhodes * 5193149Sdougb * Permission to use, copy, modify, and/or distribute this software for any 6135446Strhodes * purpose with or without fee is hereby granted, provided that the above 7135446Strhodes * copyright notice and this permission notice appear in all copies. 8135446Strhodes * 9135446Strhodes * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 10135446Strhodes * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 11135446Strhodes * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 12135446Strhodes * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 13135446Strhodes * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 14135446Strhodes * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 15135446Strhodes * PERFORMANCE OF THIS SOFTWARE. 16135446Strhodes */ 17135446Strhodes 18254897Serwin/* $Id: time.h,v 1.19 2012/01/27 23:46:58 tbox Exp $ */ 19135446Strhodes 20135446Strhodes#ifndef DNS_TIME_H 21135446Strhodes#define DNS_TIME_H 1 22135446Strhodes 23193149Sdougb/*! \file dns/time.h */ 24170222Sdougb 25135446Strhodes/*** 26135446Strhodes *** Imports 27135446Strhodes ***/ 28135446Strhodes 29135446Strhodes#include <isc/buffer.h> 30135446Strhodes#include <isc/lang.h> 31135446Strhodes 32135446StrhodesISC_LANG_BEGINDECLS 33135446Strhodes 34135446Strhodes/*** 35135446Strhodes *** Functions 36135446Strhodes ***/ 37135446Strhodes 38135446Strhodesisc_result_t 39135446Strhodesdns_time64_fromtext(const char *source, isc_int64_t *target); 40170222Sdougb/*%< 41135446Strhodes * Convert a date and time in YYYYMMDDHHMMSS text format at 'source' 42135446Strhodes * into to a 64-bit count of seconds since Jan 1 1970 0:00 GMT. 43135446Strhodes * Store the count at 'target'. 44135446Strhodes */ 45135446Strhodes 46135446Strhodesisc_result_t 47135446Strhodesdns_time32_fromtext(const char *source, isc_uint32_t *target); 48170222Sdougb/*%< 49135446Strhodes * Like dns_time64_fromtext, but returns the second count modulo 2^32 50135446Strhodes * as per RFC2535. 51135446Strhodes */ 52135446Strhodes 53135446Strhodes 54135446Strhodesisc_result_t 55135446Strhodesdns_time64_totext(isc_int64_t value, isc_buffer_t *target); 56170222Sdougb/*%< 57135446Strhodes * Convert a 64-bit count of seconds since Jan 1 1970 0:00 GMT into 58135446Strhodes * a YYYYMMDDHHMMSS text representation and append it to 'target'. 59135446Strhodes */ 60135446Strhodes 61135446Strhodesisc_result_t 62135446Strhodesdns_time32_totext(isc_uint32_t value, isc_buffer_t *target); 63170222Sdougb/*%< 64135446Strhodes * Like dns_time64_totext, but for a 32-bit cyclic time value. 65135446Strhodes * Of those dates whose counts of seconds since Jan 1 1970 0:00 GMT 66135446Strhodes * are congruent with 'value' modulo 2^32, the one closest to the 67135446Strhodes * current date is chosen. 68135446Strhodes */ 69135446Strhodes 70234010Sdougbisc_int64_t 71234010Sdougbdns_time64_from32(isc_uint32_t value); 72234010Sdougb/*%< 73234010Sdougb * Covert a 32-bit cyclic time value into a 64 bit time stamp. 74234010Sdougb */ 75234010Sdougb 76135446StrhodesISC_LANG_ENDDECLS 77135446Strhodes 78135446Strhodes#endif /* DNS_TIME_H */ 79