client server program in python

) {/* C Hild process */close (LISTENFD);/* Close listening Socket */str_echo (CONNFD);/* Process the request */exit (0);} Close (CONNFD);/* Parent Closes connected socket */}} #include ". /unpv13e/unp.h "#include ". /unpv13e/apueerror.h "#include ". /unpv13e/wrapsock.h "#include ". /unpv13e/wrapunix.h "#include ". /unpv13e/wraplib.h "#include ". /unpv13e/writen.h "#include ". /unpv13e/str_cli.h "#include ". /unpv13e/readline.h "#include ". /unpv13e/wrapstdio.h "Intmain

process. Sometimes, the crash of computers on either side of the network or network problems can cause the entire transmission to break before it is complete. If the client is not responding for more than 15 minutes (900 seconds), the FTP connection times out and interrupts. at the bottom, FTP uses TCP only, not UDP. In addition, FTP can be viewed as a special case in client/

lock .) 3. Explore the modern popular network server design architecture for coping with high-concurrency requests; What is the Client/Server programming paradigm? Simply put, some specific design methods are used to write client/server-related programs. These design meth

The following describes how to learn the socket API through the simplest client/server program instance. The function of the echoser. C program is to read characters from the client and then direct the echo back. C ++ code 1 2 3 4 5

First, the introductionUDP is a kind of transport layer protocol in TCP/IP protocol, this paper introduces the method of programming Client/server model based on UDP protocol under Linux, and gives an echo client/server example program.Brief introduction of UDP protocolUDP is a simple Transport layer protocol, which is

The Example will use sockets to manipulate the server and the client in the simplest way. The whole job of the server is to wait to establish a connection and then create a inputstream and a outputstream with the socket that the connection produces. After that, everything it reads from the InputStream is fed back to OutputStream until the line abort (end) is rec

fact, Java and the browser has already encapsulated, programmers just focus on the implementation of the business logic is OK, these do not have to care!!To understand the interaction principle, we look back at the original question, in fact, this question is not difficult to answer: JSP is ultimately compiled by the Java Web server into a servlet to execute, the nature of the struts framework is the servlet + JavaBean do a lightweight package, So th

); Close connectionWSACleanup ();}Client:#include #include #pragma comment (lib, "Ws2_32.lib")void Main (){Wsadata WSD;SOCKET sockclient; Client socketSockaddr_in addrsrv;Char recvbuf[100];if (WSAStartup (Makeword (2,2), AMP;WSD)!=0){printf ("Start up failed!\n");return;}Sockclient=socket (af_inet,sock_stream,0); Create SocketAddrsrv.sin_addr. S_un. S_ADDR=INET_ADDR ("127.0.0.1");Addrsrv.sin_family=af_inet;

1. Overview TCP client/server model in this Chapter 2. TCP echo server program 1). main Function #include "unp.h"int main(int argc, char **argv){ int listenfd, connfd; pid_t childpid; socklen_t clilen; struct sockaddr_in cliaddr, servaddr; listenfd = Socket (AF_INET, SOCK_STREAM, 0); bzer