time.h revision ec5347e2c775f027573ce5648b910361aa926c01
/*
* Copyright (C) 2004-2006 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 1999-2001 Internet Software Consortium.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: time.h,v 1.16 2007/06/18 23:47:42 tbox Exp $ */
#ifndef DNS_TIME_H
#define DNS_TIME_H 1
/*! \file dns/time.h */
/***
*** Imports
***/
#include <isc/buffer.h>
#include <isc/lang.h>
ISC_LANG_BEGINDECLS
/***
*** Functions
***/
isc_result_t
dns_time64_fromtext(const char *source, isc_int64_t *target);
/*%<
* Convert a date and time in YYYYMMDDHHMMSS text format at 'source'
* into to a 64-bit count of seconds since Jan 1 1970 0:00 GMT.
* Store the count at 'target'.
*/
isc_result_t
dns_time32_fromtext(const char *source, isc_uint32_t *target);
/*%<
* Like dns_time64_fromtext, but returns the second count modulo 2^32
* as per RFC2535.
*/
isc_result_t
dns_time64_totext(isc_int64_t value, isc_buffer_t *target);
/*%<
* Convert a 64-bit count of seconds since Jan 1 1970 0:00 GMT into
* a YYYYMMDDHHMMSS text representation and append it to 'target'.
*/
isc_result_t
dns_time32_totext(isc_uint32_t value, isc_buffer_t *target);
/*%<
* Like dns_time64_totext, but for a 32-bit cyclic time value.
* Of those dates whose counts of seconds since Jan 1 1970 0:00 GMT
* are congruent with 'value' modulo 2^32, the one closest to the
* current date is chosen.
*/
ISC_LANG_ENDDECLS
#endif /* DNS_TIME_H */