TCP通訊應用例項 伺服器與單個客戶端通訊

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伺服器部分：

客戶端部分：

伺服器部分 :

/*

伺服器部分：
*/#include
#include
#include
#include
#include
#include
#include
int tcpsock;
int newsock;
void
finish()
void
*transfer()
;//存放客戶端傳送給指定客戶端的訊息
while(1
)printf
("receive %s\n"
,buf);}
}int
main()
int on=1;
setsockopt
(tcpsock,sol_socket,so_reuseaddr,
&on,
sizeof
(on));
//設定埠釋放後立即就可以被再次使用
ret=
bind
(tcpsock,
(struct sockaddr *
)&bindaddr,
sizeof
(bindaddr));
//繫結ip和埠號
if(ret==-1
) ret=
listen
(tcpsock,8)
;//監聽
if(ret==-1
)signal
(sigint,finish)
;while(1
)printf
("ip == %s\n"
,inet_ntoa
(clientaddr.sin_addr));
printf
("埠號 == %d\n"
,ntohs
(clientaddr.sin_port));
printf
("新的檔案描述符:%d\n"
,newsock); 
pthread_t id;
pthread_create
(&id,
null
,&transfer,
null);
}}

/*

客戶端部分：
*/#include
#include
#include
#include
#include
#include
#include
int tcpsock; 
pthread_t id;
void
*fun()
printf
("receive %s\n"
,recv);}
}}void
finish()
intmain()
int on=1;
setsockopt
(tcpsock,sol_socket,so_reuseaddr,
&on,
sizeof
(on));
//設定埠釋放後立即就可以被再次使用
ret=
bind
(tcpsock,
(struct sockaddr *
)&bindaddr,
sizeof
(bindaddr));
//繫結ip和埠號
if(ret==-1
) ret=
connect
(tcpsock,
(struct sockaddr *
)&serveraddr,
sizeof
(serveraddr));
//連線伺服器
if(ret==-1
)signal
(sigint,finish)
;pthread_create
(&id,
null
,&fun,
null);
printf
("請輸入要傳送給伺服器的資訊!\n");
//傳送資訊給伺服器
while(1
)write
(tcpsock,buf,
strlen
(buf));
}close
(tcpsock)
;return0;
}

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