Socket程式設計 簡易測試socket UDP

簡易測試程式,用於測試使用socket 實現udp.

程式結構簡單,僅有相關函式的使用.旨在明確新手對於socket的學習方向.

伺服器程式:

//#include "stdafx.h"

#include #include #include using namespace std;

#pragma comment(lib,"ws2_32.lib")

int main(int argc, char* argv)

cout << "initialize ws2_32.lib...done..." << endl;

socket srv_socket;

srv_socket = socket(af_inet,sock_dgram,ipproto_udp);

if (srv_socket == socket_error)

cout << "create socket...done..." << endl;

sockaddr_in srv_addr;

srv_addr.sin_addr.s_un.s_addr = htonl(inaddr_any);

srv_addr.sin_family = af_inet;

srv_addr.sin_port = htons(6000);

ret = bind(srv_socket,(sockaddr *)&srv_addr,sizeof(srv_addr));

if (ret == socket_error)

socket client_socket;

client_socket = socket(af_inet,sock_dgram,0);

if (client_socket == socket_error)

//²»ðèòªbind

//·þîñæ÷¶ëµäµøö·ºí¶ë¿ú

sockaddr_in addrsrv;

addrsrv.sin_addr.s_un.s_addr = inet_addr("127.0.0.1");

addrsrv.sin_family = af_inet;

addrsrv.sin_port = htons(6000);

char send_buf[256];

sprintf(send_buf,"hello.....");

ret = sendto(client_socket,send_buf,strlen(send_buf) + 1,0,(sockaddr*)&addrsrv,sizeof(sockaddr));

if (ret == socket_error)

cout << "done..." << endl;

closesocket(client_socket);

wsacleanup();

return 0;

}

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