Before you start learning socket programming in C, you should basic knowledge of IP addresses, TCP, and UDP. In this article, I shall describe TCP/IP and write a socket program using the TCP/IP API. TCP (Transmission control protocol) A TCP (transmission control protocol) is a connection-...
这是因为它使用了“传输控制协议(The Transmission Control Protocol)”,也叫 “TCP”(请参考RFC-793 获得详细资料。)TCP 控制你的数据按顺序到达并且没有错 误。你也许听到 “TCP” 是因为听到过 “TCP/IP”。这里的IP 是指“Internet 协议”(请参考RFC-791。) IP 只是处理Internet 路由而已。 那么数据报套...
如果通过流套接字发送三个项目“A,B,C”,它们将以相同的顺序 - “A,B,C”到达。这些套接字使用TCP(传输控制协议)进行数据传输。如果无法交付,发件人会收到错误提示。 数据报(Datagram)套接字 - 无法保证在网络环境中交付。它们是无连接的,因为不需要像流套接字那样打开连接 ,使用UDP(用户数据报协议)。 ...
4500C 4 Layers of the IP Protocol Suite Link Layer Transport Layer Network Layer Application Layer Link Layer Transport Layer Network Layer Application Layer Ethernet e.g. ftp e.g. TCP, UDP e.g. IP CEN4500C 5 Protocol Suite Location Internet Protocol Layer Link Layer Transport Layer (TCP, ...
2、使用C/S架构通讯的socket举例使用一个服务端程序监听本机TCP-60000端口，使用一个客户端程序，向本...
() 来关闭 socket 了#socket.AF_INET 表示因特网 IPv4 地址族,SOCK_STREAM 表示使用 TCP 的 socket 类型s.bind((HOST, PORT))#关联 socket 到指定的网络接口(IP 地址)和端口号,入参取决于 socket 的地址族,在此为IPv4s.listen()conn, addr = s.accept()withconn:print('Connected by', addr)while...
For example, to send "Hello, world!" via TCP to port 80 of the host with address 1.2.3.4, one might get a socket, connect it to the remote host, send the string, then close the socket: Socket socket = getSocket(type = "TCP") ...
server.c Resources参考资料 Operating Systems , Harvey M. Deitel , 1990 Socket Linux Man Page Network Functions in C - Tutorial Internetworking with TCP/IP Vol1 - Doulgas Commer Unix Network Programming , Vol2 , Richard Stevens ...
1.NetworkApplicationProgrammingInterface:2.3.4.5.6.SocketsandInternetSocketsNetworkProgrammingTipsClient-ServerArchitectureExample:ClientProgrammingExample:ServerProgrammingNetworkProgrammer’sMistakes CEN4500C 3 LayersoftheIPProtocolSuite ApplicationLayer e.g.ftp ApplicationLayer TransportLayer e.g.TCP,UDP Transpor...
_test_connect(int pf,struct sockaddr*addr,size_t addrlen){int s=socket(pf,SOCK_STREAM,IPPROTO_TCP);if(s<0)return0;int ret;do{ret=connect(s,addr,addrlen);}while(ret<0&&errno==EINTR);int success=errno;do{ret=close(s);}while(ret<0&&errno==EINTR);returnsuccess;}staticint_have_ipv6...