recvfrom

Send functionint send (SOCKET s, const char far *buf, int len, int flags);Both the client and server applications use the Send function to send data to the other end of the TCP connection.The client program typically sends a request to the server

Because Unix and win sockets are the same, for convenience and popularity, this first introduces Winsock programming.The difficulty of socket network programming is to understand and use basic functions when getting started, because the structure of

Using the underlying sockets to decode the underlying traffic is the focus of this effort.First to capture the first package1 #Coding:utf-8import Socket2 3 #host IP for listening4Host ="192.168.1.100"5 6Socket_protocol =socket. IPPROTO_ICMP7

Structure and Principle Analysis of the packet capture module based on Linux-Linux Enterprise Application-Linux server application information. The following is a detailed description. This section discusses the structural features of the monitoring

Blocking IO Model The user space calls the Recvfrom command until the packet arrives and is copied to the buffer of the application process or when an error occurs, and the process or thread waits for a blocking state.2. Non-blocking IO

The Linux socket library was ported from the BSD Unix system developed by Berkeley University. The BSD socket interface is a widely supported TCP/IP communication interface in many UNIX systems, and the socket programming under Linux is suitable for

The difference between blocking and non-blocking is where the difference between synchronous IO and asynchronous IO is.Blocking vs non-blocking: Calling blocking IO will block the corresponding process until the operation is complete, and

1. A simple server time acquisition programThe server and client use UDP communication to write a simple time acquisition application.The process is generally straightened out, the first is the server-side writing, using the iterative way, no

The most complete difference between network protocol-TCP and UDP is introduced Preface: In order to facilitate the late turn look, the public number in slowly finishing the article, about the Java Network Programming content of the article, can be

The TCP model is as follows:The model above is already clear.The specific function usage will not elaborate.Take a look at the TCP simple example:where server.c#include #include #include #include #include #include #include #define ERR_LOG (ErrLog)

1. What are the five I/O modes?Blocking I/O, non-blocking i/o,i/o multiplexing, signal-driven I/O (SIGIO), asynchronous I/OIn general, there are two steps for the input operation of the program, one is to wait for the data to be readable, and the

Recently busy to transfer a project from MySQL to MongoDB, in the process of importing old data, encountered some twists and turns, made a lot of mistakes, but also learned a lot of knowledge, so recorded. The company specially equipped with

Are the simplest to remember.This is my git address: HTTPS://GITHUB.COM/YANJINYUN/CLANGUAGETCPUDPThe simplest server for TCP:intMainintargcConst Char*argv[]) { intLISTENFD, ACCEPTFD; structsockaddr_in sin, cin; Socklen_t Clen; Charbuf[1024x768]

The Windows implementation of the TCP/IP protocol is built on the OSI foundation of the previous blog post. User Configuration is implemented by Ws2_32.dll and some other service provider DLLs, where Ws2_32.dll is a framework that can accommodate

If I haven't logged on for a few days, I always feel that I have less things (because I caught a thief). Today I want to talk about the small test recently. It seems that I can change it on a large project in the future. 1 broadcast: (IPv4 and no v6

Previous: http://www.bkjia.com/kf/201112/115686.html 5.8. sendto () and recvfrom () --- Talk To Me, Datagram"That's good," you said. "But you haven't talked about the connectionless datagram socket ?" No problem. Now let's start this content. Since

{Code ...} the above is the php code, and then I strace it, the result is as follows {code ...} after sending the get command in line 3, poll is called. The timeout value is the value of line 0, 1572, and the value of timeout is 2000. Why do I need

TCP/IP network programming (Transcription Note 2) –udp TCP/IP network programming (Transcription Note 2) –udptable of Contents Server Client Connect Source: "TCP/IP network Programming"Transcription TCP protocol

First, TCP with the UDP the DifferenceConnection-based and no-connectionRequirements for system resources (more TCP, less UDP)The structure of the UDP program is relatively simpleFlow mode and Datagram modeTCP guarantees data correctness, UDP may

UDP: User Datagram Protocol, it does not provide reliable transmission, only responsible for data transmission, is non-connectedServer-side:Because UDP is not connected, you do not have to set the socket to a listening state1. Creating sockets using