linux socket programming by example pdf

Write a simple socket network communication program today, after using CTRL + C to end the server-side program, start the server again there is a bind failed:the address already in the error. After checking the Internet, I found out the reason, here to record a bit. This is what IBM's official web site says: http://www.ibm.com/developerworks/cn/linux/l-sockpit/. Detailed descriptions are as follows: The c

Socket programming practices in Linux (7) I/O multiplexing technology-select model Before entering the topic of today's select model, let's take a look at the five I/O models: (1) blocking I/O (this method is used by default) In server socket programming, our common accpet

-Pthread_exitFirst, the socket programming under Linux:1. The client performs the following steps in sequence:Socket ()Connect ()Send () or recv ()Close ()Note that the address structure is populated before connect, and the IP address is converted to a network byte order, typically with Inet_aton ().2. Server side:Socket ()Bind ()Listen ()Accpet ()Recv () or send

45 46 47 48 49 50 51 52 # Include # Include # Include # Include # Include # Include # Include # Define err_exit (m )\Do {\Perror (m );\Exit (exit_failure );\} While (0)Int getlocalip (char * IP){Char host [100] = {0 };If (gethostname (host, sizeof (host) Return-1;Struct hostent * HP;If (HP = gethostbyname (host) = NULL)Return-1;// # Define h_addr h_addr_list [0]Strcpy (IP, inet_ntoa (* (struct in_addr *) HP-> h_addr_list [0]);Return 0;}I

Differences between blocking and non-blocking socket in Linux Network Programming-slj_win's column-blog channel-csdn. net Differences between blocking and non-blocking socket in Linux Network Programming Category: c

Network communication programming is to write through the computer and other programs to communicate between the program, the program of mutual communication can be called the client program, the other party is called the Service program, the application system provides socket programming interface can write their own network program.A transfer via TCP/IP protoco

1) header FileUnder Windows Winsock.h/winsock2.hLinux under Sys/socket.hError handling: Errno.h2) InitializationNeed to use WSAStartup under WindowsNot required under Linux3) Close SocketWindows Closesocket (...)Linux under Close (...)4) TypeUnder Windows socketLinux under intAs some of the macros I used:#ifdef WIN32typedef int SOCKLEN_T;typedef int ssize_t;#endif#ifdef __linux__typedef int SOCKET;typedef u

I haven't read the Linux network programming book for a long time. Today I see the key part: TCP socket. Next let's take a look at the socket address Structure Linux sockets support multiple protocols. Each protocol uses a different address structure. In the header file

Linux Network Programming socket options so_linger, so_reuseaddr In Linux network programming, there are many socket options. Several of the most important options are: so_linger (only applicable to TCP and sctp), so_reuseaddr.

Transferred from: http://blog.chinaunix.net/u3/102500/showart_2065640.html13 Types of Sockets:1. Streaming Sockets (Socket_stream)Provides reliable, connection-oriented data transfer services. Data is treated as a byte stream with no length limit. For example, the FTP protocol uses this.2. Datagram-type sockets (Socket_dgram)Provides non-connected data transfer services and does not guarantee reliability.3. Original

This log is based on an example that can run successfully. Once the program runs successfully, I want to ask why? It seems that this is easier to understand and grasp. I won't write more about the concept of the socket program here, but I believe that if I can read this entire article, I believe there will be no such questions. The following is a C/S program. The main function is that the client will send s

is immediately disconnected. Data that is not sent in send buffer is discarded and an RST message is sent to the other party. It is worth noting that due to this way, the TCP link is terminated in an abnormal 4 handshake mode, so the TCP connection will not enter the time _wait state, which can cause new and confusing data to be created. For specific reasons see my previous article "Linux Network programming