SOCKET收发数据报

WORD wVertionRequest;

WSADATA wsaData;

int err;

wVertionRequest=MAKEWORD(1,1);

err=WSAStartup(wVertionRequest,&wsaData);

if (err!=0)

{

return 0;

}

if (LOBYTE(wsaData.wVersion)!=1||HIBYTE(wsaData.wVersion!=1))

{

WSACleanup();

return 0;

}

SOCKET sockSrv=socket(AF_INET,SOCK_DGRAM,0);

SOCKADDR_IN addrSrv;

addrSrv.sin_addr.S_un.S_addr=htonl(INADDR_ANY);

addrSrv.sin_family=AF_INET;

addrSrv.sin_port=htons(6000);//端口

bind(sockSrv,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR));

char recvBuf[100];

// char sendBuf[100];

// char tempBuf[100];

SOCKADDR_IN addrClient;

int len=sizeof(SOCKADDR);

while (1)

{

recvfrom(sockSrv,recvBuf,100,0,(SOCKADDR*)&addrClient,&len);

}

closesocket(sockSrv);

WSACleanup();////////////////////////收

WORD wVertionRequest;

WSADATA wsaData;

int err;

wVertionRequest=MAKEWORD(1,1);

err=WSAStartup(wVertionRequest,&wsaData);

if (err!=0)

{

return 0;

}

if (LOBYTE(wsaData.wVersion)!=1||HIBYTE(wsaData.wVersion!=1))

{

WSACleanup();

return 0;

}

SOCKET sockClient=socket(AF_INET,SOCK_DGRAM,0);

SOCKADDR_IN addrSrv;

while (1)

{

addrSrv.sin_addr.S_un.S_addr=inet_addr("192.168.1.15");

addrSrv.sin_family=AF_INET;

addrSrv.sin_port=htons(6000);

SOCKADDR_IN addrClient;

int len=sizeof(SOCKADDR);

sendto(sockClient,"vonline",strlen("vonline")+1,0,(SOCKADDR*)&addrSrv,len);

}

closesocket(sockClient);

WSACleanup();

return 0;/////////////////发