setsockopt

When learning the network basics, the transport layer protocols include TCP and UDP; In Linux network programming, we use the socket API to implement network communication. So: How does the status of Socket API correspond to that of TCP? We can see

The answer is: yes. It is about 5-15 kb. I don't know what the default value is. I tested 16371 bytes. Win7 x64. You can use setsockopt to set the recvbuf or sndbuf size. However, we recommend that you set the number of bytes received each time to

1, generally speaking, a port after the release will wait two minutes before being used again, SO_REUSEADDR is to let the port released immediately after it can be reused.SO_REUSEADDR is used for sockets that are in the TIME_WAIT state of a TCP

NetBSD Kernel "setsockopt ()" DoS Vulnerability Release date:Updated on: Affected Systems:NetBSD 6.1-6.1.4NetBSD 6.0-6.0.4Description:NetBSD is a free and highly customizable Unix-like operating system suitable for multiple platforms, from 64-bit

1. Generally, a port can be used again after being released for two minutes. so_reuseaddr enables the port to be used again immediately after being released. So_reuseaddr is used to bind a TCP socket in the time_wait status. The server program

OrderAfter a very cool national Day holiday, with a small little boyfriend parents back to their hometown tasted Chaoshan food, Nanao Island fishing shrimp, seafood support to explode, back to Shenzhen the next day little other children parents took

Int setsockopt (Socket s,Int level,Int optname,Const char * optval,Int optlen); S (socket): point to an open set Interface DescriptionLevel: (level): Specifies the option code type.Sol_socket: basic set of interfacesIpproto_ip: IPv4 InterfaceIpproto_

# Include # Include Int setsockopt (int s, int level, int optname, const void * optval,Socklen_t optlen );S: socket, pointing to an open interface descriptionLevel: specifies the type of the Option Code. The specific types are as follows:SOL_SOCKET:

 After reading this, you will know how IGMPv3 is implemented... Multicasting with setsockopt Originally, the only way to join or leave a multicast group wasVia the setsockopt API. WinSock 2 introducesProtocol-independent method of multicasting with

1. if you want to reuse a socket that is already in the established State (usually distinguished by the port number and the flag) after calling closesocket (usually the socket will not be closed immediately but will go through the time_wait process:

  1. getsockopt and setsockopt Functions These two functions are only used for sockets: # Include int getsockopt (int sockfd, int level, int optname, void * optval, socklen_t * optlen); int setsockopt (int sockfd, int level, int optname, const void

Subject: Analysis: setsockopt () improves program robustnessAuthor: gdy119 (evening breeze) I am sorry for the constant thanks from coolmei25 (Mei Sheng). belowI have written some of my experiences in network programming and hope to help him (^_^:1.

Windows method: U_long mode = 0;Ioctlsocket (S, fionbio, & mode );Control as blocking mode. U_long mode = 1;Ioctlsocket (S, fionbio, & mode );Non-blocking mode. Setsockopt () Description:Set Interface Options.# Include Int Pascal far setsockopt

By default, TCP connections do not have a heartbeat. This means that when a TCP socket, no one from the client and the server sends data, the connection will continue. In this case, if one of the two clients experiences abnormal disconnection, the

Using the C/S mode software with TCP connection, if either side crashes unexpectedly, when the machine, the network cable disconnects or the router fails, the other party cannot know that the TCP connection has been invalidated unless it continues

int Nnettimeout= +;//1 seconds //Delivery time limitsetsockopt (Socket,sol_s0cket,so_sndtimeo, (Char *)&Nnettimeout,sizeof(int));//Receiving time limitsetsockopt (Socket,sol_s0cket,so_rcvtimeo, (Char *)&Nnettimeout,sizeof(int));1.closesocket

Linux built-in support keepalive mechanism, in order to use it, you need to enable TCP/IP network, in order to be able to configure the kernel at runtime parameters, you also need PROCFS and sysctl support.This process involves three user-driven

Reprint Please specify source:http://blog.csdn.net/mxway/article/details/44195099This article is on the Fly pigeon 2.06 source code based on the analysis.First, the initialization of the networkThe following code is in the constructor of the class

The C/S software of TCP connection is used. When both parties are idle, if either party unexpectedly crashes, when the machine or network cable is disconnected or the router fails, the other party cannot know that the TCP connection has expired,

[Socket] How to unbind BIND ()? I am looking for information about setsockopt:1. If the socket is already in the established State (usually distinguished by the port number and flag ),Closesocket (usually does not close immediately and goes