1 /* 2 * FreeRTOS+TCP <DEVELOPMENT BRANCH> 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 #ifndef FREERTOS_DNS_NETWORKING_H 28 #define FREERTOS_DNS_NETWORKING_H 29 30 #include "FreeRTOS_IP.h" 31 #include "FreeRTOS_Sockets.h" 32 #include "FreeRTOS_DNS_Globals.h" 33 34 #if ( ipconfigUSE_DNS != 0 ) 35 36 /* 37 * Create a socket and bind it to the standard DNS port number. Return the 38 * the created socket - or NULL if the socket could not be created or bound. 39 */ 40 Socket_t DNS_CreateSocket( TickType_t uxReadTimeOut_ticks ); 41 42 /** 43 * @brief Bind the socket to a port number. 44 * @param[in] xSocket: the socket that must be bound. 45 * @param[in] usPort: the port number to bind to. 46 * @return The created socket - or NULL if the socket could not be created or could not be bound. 47 */ 48 BaseType_t DNS_BindSocket( Socket_t xSocket, 49 uint16_t usPort ); 50 51 BaseType_t DNS_SendRequest( Socket_t xDNSSocket, 52 const struct freertos_sockaddr * xAddress, 53 const struct xDNSBuffer * pxDNSBuf ); 54 55 BaseType_t DNS_ReadReply( ConstSocket_t xDNSSocket, 56 struct freertos_sockaddr * xAddress, 57 struct xDNSBuffer * pxReceiveBuffer ); 58 59 void DNS_CloseSocket( Socket_t xDNSSocket ); 60 61 #endif /* if ( ipconfigUSE_DNS != 0 ) */ 62 #endif /* ifndef FREERTOS_DNS_NETWORKING_H */ 63