socket接口网络编程 socket网络编程
\u600e\u6837\u7528C\u8bed\u8a00\u505asocket\u7f51\u7edc\u7f16\u7a0b\uff1fmfc\u53ea\u662f\u5bf9socket\u8fdb\u884c\u4e86\u4e00\u4e9b\u5c01\u88c5\uff0c\u5927\u90e8\u5206\u4eba\u505a\u7f51\u7edc\u7f16\u7a0b\u90fd\u662f\u7528\u7684\u539f\u59cb\u7684socket\uff0c\u6bd4\u5982\u5982\u4e0b\u63a5\u53e3\u90fd\u53ef\u4ee5\u5728c\u4e0b\u8fdb\u884c\u8c03\u7528
1.socket()
2.bind()
3.connect()
4.listen()
5.accept()
6.send() \u548crecv()
7.sendto() \u548crecvfrom()
8.close() \u548cshutdown()
9.getpeername()
10.gethostname()
\u8fd9\u4e9b\u63a5\u53e3\u662f\u5728Winsock2.h\u4e2d\u5b9a\u4e49\u7684\u4e0d\u662f\u5728mfc\u4e2d\u5b9a\u4e49\u7684\uff0c\u4f60\u53ea\u9700\u8981\u5305\u542bWinsock2.h\u5934\u6587\u4ef6\u548cWs2_32.lib\u5e93\u5c31\u53ef\u4ee5\u4e86\u3002
//#include <winsock2.h>
//#pragma comment(lib,"WS2_32.lib")
WSADATA wsd;
SOCKET s;
char buf[1024];
if(WSAStartup(MAKEWORD(2,2),&wsd)!=0)
{
return -1;//失败
}
s=socket(AF_INET,SOCK_DGRAM,0);
if(s==INVALID_SOCKET)
{
WSACleanup();
return -1;//创建套接字失败
}
SOCKADDR_IN servAddr;
servAddr.sin_family=AF_INET;
servAddr.sin_addr.s_addr=inet_addr(%%1);
servAddr.sin_port=htons(INADDR_ANY);
if(bind(s,(SOCKADDR*)&servAddr,sizeof(SOCKADDR_IN))==SOCKET_ERROR)
{
closesocket(s);
WSACleanup();
return -1;//绑定套接字失败
}
int nServAddrlen=sizeof(servAddr);
ZeroMemory(buf,sizeof(buf));
if(recvfrom(s,buf,size(buf),0,(SOCKADDR*)&servAddr,nServAddrlen)==SOCKET_ERROR)
{
closesocket(s);
WSACleanup();
return -1;//接收数据失败
}
CString %%2(buf);
ZeroMemory(buf,sizeof(buf));
strcpy(buf,%%3);
SOCKADDR_IN clientAddr;
clientAddr.sin_family=AF_INET;
clientAddr.sin_addr.s_addr=inet_addr(%%4);
clientAddr.sin_port=htons((short)%%5);
int nClientlen=size(clientAddr);
if(sendto(s,buf,sizeof(buf),0,(SOCKADDR*)&clientAddr,nClientlen)==SOCKET_ERROR)
{
closesocket(s);
WSACleanup();
return -1;//向服务器发送数据失败
}
closesocket(s);
WSACleanup();
NB
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