基於tcp的socket程式設計
伺服器端程式： 1
、建立socket
2、將套接字繫結到乙個本地位址和埠上
bind
3、將套接字設為監聽模式，準備接受客戶請求
listen
4、等待客戶請求到來；當請求到來後，結合搜此次連線的套接字
accept
5、用返回的套接字和客戶端進行通訊
send/recv
6、返回，等待另一客戶請求。 7
、關閉套接字。
原始碼：#pragma comment(lib, "ws2_32.lib ")
#include
#include
void main()
/* confirm that the winsock dll supports 2.2.*/
/* note that if the dll supports versions greater */
/* than 2.2 in addition to 2.2, it will still return */
/* 2.2 in wversion since that is the version we */
/* requested. */
if ( lobyte( wsadata.wversion ) != 2 ||
hibyte( wsadata.wversion ) != 2 )
socket socksrv=socket(af_inet,sock_stream,0);
sockaddr_in addrsrv;
addrsrv.sin_addr.s_un.s_addr=htonl(inaddr_any);
addrsrv.sin_family=af_inet;
addrsrv.sin_port=htons(6000);
bind(socksrv,(sockaddr*)&addrsrv,sizeof(sockaddr));
listen(socksrv,5);
sockaddr_in addrclient;
int len=sizeof(sockaddr);
while(1)}
客戶端程式： 1
、建立套接字
socket
2、想伺服器發出連線請求
connect
3、和伺服器進行通訊
send/recv
4、關閉套接字。
原始碼：#pragma comment(lib, "ws2_32.lib ")
#include
#include
void main()
/* confirm that the winsock dll supports 2.2.*/
/* note that if the dll supports versions greater */
/* than 2.2 in addition to 2.2, it will still return */
/* 2.2 in wversion since that is the version we */
/* requested. */
if ( lobyte( wsadata.wversion ) != 2 ||
hibyte( wsadata.wversion ) != 2 )
socket sockclient=socket(af_inet,sock_stream,0);
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);
connect(sockclient,(sockaddr*)&addrsrv,sizeof(sockaddr));
char recvbuf[100];
recv(sockclient,recvbuf,100,0);
printf("%s/n",recvbuf);
send(sockclient,"this is zhouyang",strlen("this is zhouyang")+1,0);
closesocket(sockclient);
wsacleanup();}
基於udp的socket程式設計
伺服器端： 1
、建立socket
2、將套接字繫結到乙個本地位址和埠上
bind
3、等待接受資料
receive from
4、關閉套接字。
**：#include
#include
void main()
/* confirm that the winsock dll supports 2.2.*/
/* note that if the dll supports versions greater */
/* than 2.2 in addition to 2.2, it will still return */
/* 2.2 in wversion since that is the version we */
/* requested. */
if ( lobyte( wsadata.wversion ) != 2 ||
hibyte( wsadata.wversion ) != 2 )
socket socketsrv=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);
bind(socketsrv,(sockaddr*)&addrsrv,sizeof(sockaddr));
sockaddr_in addrclient;
int len=sizeof(sockaddr);
char recvbuf[100];
recvfrom(socketsrv,recvbuf,100,0,(sockaddr*)&addrclient,&len);
printf("%s/n",recvbuf);
closesocket(socketsrv);
wsacleanup();}
客戶端程式： 1
、建立套接字
socket
2、向伺服器傳送資料 3
、關閉套接字
**：#include
#include
void main()
/* confirm that the winsock dll supports 2.2.*/
/* note that if the dll supports versions greater */
/* than 2.2 in addition to 2.2, it will still return */
/* 2.2 in wversion since that is the version we */
/* requested. */
if ( lobyte( wsadata.wversion ) != 2 ||
hibyte( wsadata.wversion ) != 2 )
socket sockclient=socket(af_inet,sock_dgram,0);
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);
sendto(sockclient,"hello visionsky",
strlen("hello visionsky")+1,0,
(sockaddr*)&addrsrv,sizeof(sockaddr));
closesocket(sockclient);
wsacleanup(); }
注意：先啟動伺服器端，在啟動客戶端，另還需新增
ws2_32.lib~
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