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发表于 2018-8-9 13:48:16
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本楼为最佳答案
校对了一些视频,有一些不一样的地方,但大致结构相同
参考一下。这是给 Winsock Client Server 的
- #undef UNICODE
- #define WIN32_LEAN_AND_MEAN
- // #include <windows.h> // 这个在 WIN32_LEAN_AND_MEAN 里有被定义了
- #include <winsock2.h>
- #include <ws2tcpip.h> // ?
- #include <stdlib.h>
- #include <stdio.h>
- // Need to link with Ws2_32.lib
- #pragma comment (lib, "Ws2_32.lib")
- // #pragma comment (lib, "Mswsock.lib")
- #define DEFAULT_BUFLEN 512
- #define DEFAULT_PORT "27015"
- int __cdecl main(void)
- {
- WSADATA wsaData;
- int iResult;
- SOCKET ListenSocket = INVALID_SOCKET;
- SOCKET ClientSocket = INVALID_SOCKET;
- struct addrinfo *result = NULL;
- struct addrinfo hints;
- int iSendResult;
- char recvbuf[DEFAULT_BUFLEN];
- int recvbuflen = DEFAULT_BUFLEN;
-
- // Initialize Winsock
- iResult = WSAStartup(MAKEWORD(2,2), &wsaData);
- if (iResult != 0) {
- printf("WSAStartup failed with error: %d\n", iResult);
- return 1;
- }
- ZeroMemory(&hints, sizeof(hints));
- hints.ai_family = AF_INET;
- hints.ai_socktype = SOCK_STREAM;
- hints.ai_protocol = IPPROTO_TCP;
- hints.ai_flags = AI_PASSIVE;
- // Resolve the server address and port
- iResult = getaddrinfo(NULL, DEFAULT_PORT, &hints, &result);
- if ( iResult != 0 ) {
- printf("getaddrinfo failed with error: %d\n", iResult);
- WSACleanup();
- return 1;
- }
- // Create a SOCKET for connecting to server
- ListenSocket = socket(result->ai_family, result->ai_socktype, result->ai_protocol);
- if (ListenSocket == INVALID_SOCKET) {
- printf("socket failed with error: %ld\n", WSAGetLastError());
- freeaddrinfo(result);
- WSACleanup();
- return 1;
- }
- // Setup the TCP listening socket
- iResult = bind( ListenSocket, result->ai_addr, (int)result->ai_addrlen);
- if (iResult == SOCKET_ERROR) {
- printf("bind failed with error: %d\n", WSAGetLastError());
- freeaddrinfo(result);
- closesocket(ListenSocket);
- WSACleanup();
- return 1;
- }
- freeaddrinfo(result);
- iResult = listen(ListenSocket, SOMAXCONN);
- if (iResult == SOCKET_ERROR) {
- printf("listen failed with error: %d\n", WSAGetLastError());
- closesocket(ListenSocket);
- WSACleanup();
- return 1;
- }
- // Accept a client socket
- ClientSocket = accept(ListenSocket, NULL, NULL);
- if (ClientSocket == INVALID_SOCKET) {
- printf("accept failed with error: %d\n", WSAGetLastError());
- closesocket(ListenSocket);
- WSACleanup();
- return 1;
- }
- // No longer need server socket
- closesocket(ListenSocket);
- // Receive until the peer shuts down the connection
- do {
- iResult = recv(ClientSocket, recvbuf, recvbuflen, 0);
- if (iResult > 0) {
- printf("Bytes received: %d\n", iResult);
- // Echo the buffer back to the sender
- iSendResult = send( ClientSocket, recvbuf, iResult, 0 );
- if (iSendResult == SOCKET_ERROR) {
- printf("send failed with error: %d\n", WSAGetLastError());
- closesocket(ClientSocket);
- WSACleanup();
- return 1;
- }
- printf("Bytes sent: %d\n", iSendResult);
- }
- else if (iResult == 0)
- printf("Connection closing...\n");
- else {
- printf("recv failed with error: %d\n", WSAGetLastError());
- closesocket(ClientSocket);
- WSACleanup();
- return 1;
- }
- } while (iResult > 0);
- // shutdown the connection since we're done
- iResult = shutdown(ClientSocket, SD_SEND);
- if (iResult == SOCKET_ERROR) {
- printf("shutdown failed with error: %d\n", WSAGetLastError());
- closesocket(ClientSocket);
- WSACleanup();
- return 1;
- }
- // cleanup
- closesocket(ClientSocket);
- WSACleanup();
- return 0;
- }
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