1 /** @file 2 Receive a datagram 3 4 Copyright (c) 2011-2012, Intel Corporation 5 All rights reserved. This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 #include <errno.h> 16 #include <string.h> 17 #include <Uefi.h> 18 #include <unistd.h> 19 20 #include <Library/DebugLib.h> 21 #include <Library/UefiLib.h> 22 23 #include <netinet/in.h> 24 25 #include <sys/socket.h> 26 #include <sys/time.h> 27 28 UINT8 mBuffer[ 65536 ]; 29 30 /** 31 Receive a datagram 32 33 @param [in] Argc The number of arguments 34 @param [in] Argv The argument value array 35 36 @retval 0 The application exited normally. 37 @retval Other An error occurred. 38 **/ 39 int 40 main ( 41 IN int Argc, 42 IN char **Argv 43 ) 44 { 45 struct sockaddr_in Address; 46 socklen_t AddressLength; 47 ssize_t LengthInBytes; 48 int s; 49 int Status; 50 struct timeval Timeout; 51 52 53 DEBUG (( DEBUG_INFO, 54 "%a starting\r\n", 55 Argv[0])); 56 57 // 58 // Get the socket 59 // 60 s = socket ( AF_INET, SOCK_DGRAM, 0 ); 61 if ( -1 == s ) { 62 Print ( L"ERROR - Unable to open the socket, errno: %d\r\n", errno ); 63 } 64 else { 65 Timeout.tv_sec = 5; 66 Timeout.tv_usec = 0; 67 Status = setsockopt ( s, 68 SOL_SOCKET, 69 SO_RCVTIMEO, 70 &Timeout, 71 sizeof ( Timeout )); 72 if ( -1 == Status ) { 73 Print ( L"ERROR - Unable to set the receive timeout, errno: %d\r\n", errno ); 74 } 75 else { 76 AddressLength = sizeof ( Address ); 77 LengthInBytes = recvfrom ( s, 78 &mBuffer[0], 79 sizeof ( mBuffer[0]), 80 0, 81 (struct sockaddr *)&Address, 82 &AddressLength ); 83 if ( -1 == LengthInBytes ) { 84 if ( ETIMEDOUT == errno ) { 85 Print ( L"No datagram received\r\n" ); 86 } 87 else { 88 Print ( L"ERROR - No datagram received, errno: %d\r\n", errno ); 89 } 90 } 91 else { 92 Print ( L"Received %d bytes from %d.%d.%d.%d:%d\r\n", 93 LengthInBytes, 94 (UINT8)Address.sin_addr.s_addr, 95 (UINT8)( Address.sin_addr.s_addr >> 8 ), 96 (UINT8)( Address.sin_addr.s_addr >> 16 ), 97 (UINT8)( Address.sin_addr.s_addr >> 24 ), 98 htons ( Address.sin_port )); 99 } 100 } 101 102 // 103 // Done with the socket 104 // 105 close ( s ); 106 } 107 108 // 109 // All done 110 // 111 DEBUG (( DEBUG_INFO, 112 "%a exiting, errno: %d\r\n", 113 Argv[0], 114 errno )); 115 return errno; 116 } 117
