1 /*
2  * FreeRTOS+TCP V3.1.0
3  * Copyright (C) 2022 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
4  *
5  * SPDX-License-Identifier: MIT
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a copy of
8  * this software and associated documentation files (the "Software"), to deal in
9  * the Software without restriction, including without limitation the rights to
10  * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
11  * the Software, and to permit persons to whom the Software is furnished to do so,
12  * subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be included in all
15  * copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
19  * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
20  * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
21  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23  *
24  * https://github.com/FreeRTOS
25  * https://www.FreeRTOS.org
26  */
27 
28 #ifndef FREERTOS_DNS_CACHE_H
29 #define FREERTOS_DNS_CACHE_H
30 
31 /* FreeRTOS includes. */
32 #include "FreeRTOS.h"
33 
34 /* FreeRTOS+TCP includes. */
35 #include "FreeRTOS_IP.h"
36 
37 /* Standard includes. */
38 #include <stdint.h>
39 
40 #if ( ( ipconfigUSE_DNS_CACHE == 1 ) && ( ipconfigUSE_DNS != 0 ) )
41 
42     uint32_t FreeRTOS_dnslookup( const char * pcHostName );
43 
44     void FreeRTOS_dnsclear( void );
45 
46     BaseType_t FreeRTOS_dns_update( const char * pcName,
47                                     uint32_t * pulIP,
48                                     uint32_t ulTTL );
49 
50     BaseType_t FreeRTOS_ProcessDNSCache( const char * pcName,
51                                          uint32_t * pulIP,
52                                          uint32_t ulTTL,
53                                          BaseType_t xLookUp );
54 #endif /* if ( ipconfigUSE_DNS_CACHE == 1 ) */
55 
56 #endif /* ifndef FREERTOS_DNS_CACHE_H */
57