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/*
* Copyright (C) 2018 "IoT.bzh"
* Author José Bollo <jose.bollo@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
/******************************************************************************/
/******************************************************************************/
/* CONVERTION OF EXPIRATIONS TO AND FROM TEXT */
/******************************************************************************/
/******************************************************************************/
/**
* Converts the time of the string to an expiration
*
* The string code a time relative to now using the format
* XXXyXXXwXXXdXXXhXXXmXXXs where XXX are numbers.
*
* Examples:
* - 15 means 15 seconds
* - 4h15m30s means 4 hours 15 minutes 30 seconds
* - forever means forever
* - 2m2w means two months and 2 weeks
*
* @param txt the text to convert
* @param time_out where to store the result
* @return true if valid false otherwise
*/
extern
bool
txt2exp(
const char *txt,
time_t *time_out
);
/**
* Converts the expiration in to its relative string representation
*
* @param expire the epiration to convert
* @param buffer the buffer where to store the converted string
* @param buflen length of the buffer
* @return the length of the resulting string, can be greater than buflen but
* in that case, no more than buflen characters are copied to buffer
*/
extern
size_t
exp2txt(
time_t expire,
char *buffer,
size_t buflen
);
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