/usr/include/ldns/duration.h is in libldns-dev 1.6.17-1ubuntu0.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* $Id: duration.h 4341 2011-01-31 15:21:09Z matthijs $
*
* Copyright (c) 2009 NLNet Labs. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
*/
/**
*
* This file is copied from the OpenDNSSEC source repository
* and only slightly adapted to make it fit.
*/
/**
*
* Durations.
*/
#ifndef LDNS_DURATION_H
#define LDNS_DURATION_H
#include <stdint.h>
#include <time.h>
/**
* Duration.
*
*/
typedef struct ldns_duration_struct ldns_duration_type;
struct ldns_duration_struct
{
time_t years;
time_t months;
time_t weeks;
time_t days;
time_t hours;
time_t minutes;
time_t seconds;
};
/**
* Create a new 'instant' duration.
* \return ldns_duration_type* created duration
*
*/
ldns_duration_type* ldns_duration_create(void);
/**
* Compare durations.
* \param[in] d1 one duration
* \param[in] d2 another duration
* \return int 0 if equal, -1 if d1 < d2, 1 if d2 < d1
*
*/
int ldns_duration_compare(ldns_duration_type* d1, ldns_duration_type* d2);
/**
* Create a duration from string.
* \param[in] str string-format duration
* \return ldns_duration_type* created duration
*
*/
ldns_duration_type* ldns_duration_create_from_string(const char* str);
/**
* Convert a duration to a string.
* \param[in] duration duration to be converted
* \return char* string-format duration
*
*/
char* ldns_duration2string(ldns_duration_type* duration);
/**
* Convert a duration to a time.
* \param[in] duration duration to be converted
* \return time_t time-format duration
*
*/
time_t ldns_duration2time(ldns_duration_type* duration);
/**
* Clean up duration.
* \param[in] duration duration to be cleaned up
*
*/
void ldns_duration_cleanup(ldns_duration_type* duration);
#endif /* LDNS_DURATION_H */
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