服务端
#include
#include
#include
int main (int agrc,char*argv[])
{
SOCKET socket1;
WSADATA wsaData;
int ErrorCode;
if(WSAStartup(MAKEWORD(2,1),&wsaData))// windows socket dll;
{
printf("Winsock initiate failed!!\n");
WSACleanup();
return 0;
}
printf("Winsock start...\n");
struct sockaddr_in local;
struct sockaddr_in client;
int len = sizeof(client);
local.sin_family = AF_INET;
local.sin_port = htons(12345); //the port need listened
local.sin_addr.s_addr = INADDR_ANY; //localhost
socket1 = socket(AF_INET,SOCK_DGRAM,0);
bind(socket1,(struct sockaddr*)&local,sizeof(local));
while (1)
{
char buffer[1024] = "/0";
printf("waiting message from the clients...\n");
if(recvfrom(socket1,buffer,sizeof(buffer),0,(struct sockaddr*)&client,&len) != SOCKET_ERROR)
{
printf("recevie message: [%s]---%s\n",inet_ntoa(client.sin_addr),buffer);
//send sth to the client
sendto(socket1,buffer,sizeof(buffer),0,(struct sockaddr*)&client,len);
}
}
closesocket(socket1);
system("pause");
return 0;
}
客户端:
#include
#include
#include
int main (int agrc,char*argv[])
{
SOCKET socket1;
WSADATA wsaData;
int ErrorCode;
if(WSAStartup(MAKEWORD(2,1),&wsaData))// windows socket dll;
{
printf("Winsock initiate failed!!\n");
WSACleanup();
return 0;
}
printf("Winsock start...\n");
const char* ip="127.0.0.1";
struct sockaddr_in server;
int len = sizeof(server);
server.sin_family = AF_INET;
server.sin_port = htons(12345); //the port need listened
server.sin_addr.s_addr = inet_addr(ip);
socket1 = socket(AF_INET,SOCK_DGRAM,0);
while (1)
{
char buffer[1024] = "\0";
printf("input message\n");
scanf("%s",buffer);
//printf("%s",buffer);
if(strcmp(buffer,"bye")==0)
{
printf("exit,bye!!\n");
Sleep(100);
closesocket(socket1);
break;
}
if(sendto(socket1,buffer,sizeof(buffer),0,(struct sockaddr*)&server,len)!=SOCKET_ERROR)
{
printf("sending...");
Sleep(100);
if(recvfrom(socket1,buffer,sizeof(buffer),0,(struct sockaddr*)&server,&len) != SOCKET_ERROR)
printf("recevie from service: %s\n",buffer);
}
}
closesocket(socket1);
system("pause");
return 0;
}
注意: Makefile 加上 -lws2_32