I have serious and strange problem with creating socket in my application for Hight Sierra. If I create command Line tool, everything is ok! I create ...

I try to establish a connection to a TCP server, unfortunately without success. Here is my actual way. Does anyone knows, where the error is? I'm gett ...

I'm trying to set up a UDP socket on iOS to listen for datagrams coming over a multicast socket: All the socket calls succeed, but I don't get any ...

I need your help. I have this Xamarin app, that is sending a multicast on the network using System.Net.UdpClient, but it seems pretty unstable and cr ...

I'm trying to wrap my head around the logic behind hasSpaceAvailable on NSOutputStream. In my app, I'm sending large amounts of data (100MB) broken u ...

I'm trying to write a socket server app for Mac OSX with Xcode:7.2.1 in Swift2.1.1. referring to CocoaEcho sample code. But I cannot call a swift func ...

this is my code in ViewController.h in CoCoa to implement "CFsocket" this is ViewController.m when i use c function , it can't recognize _Comma ...

Im facing issue for creating a socket connection with an iPV6 using CFStreamCreatePairWithSocketToHost. But I'm able to create socket connection with ...

I have an iOS application that follows roughly the following steps: Opens a listening socket. Accepts a single client connection. Performs dat ...

This is my Client and Server code for CFSocket communication but on successful connection this code crashes. Client.m Server.m In the above cod ...

Running into an issue when using sockets with an NSXPCConnection. Basically, there is a main process and a helper process running, established via NS ...

I have a CFSocket callback method that is declared like this: And the problem is that I get an "Use of undeclared identifier '_scanningInProgress' ...

I have an iOS application that remotely connects to 3 sockets(of some hardware). Each Socket has its own priority. One channel is only used for transf ...

I set the context to the address of the class that created the socket like this: Then in the callback I put this: I saw Apple sample code that d ...

I am trying to send a simple string over UDP in my iOS7 app to a known IP and could not find a simple explanation and sample code on how to do that. T ...

I am developing an app for iOS. In my app there is a working TCP-connection to a server, realized via NSStreams. Now I need the port the connection is ...

I want to connect with pool.ntp.org to time sync. So am creating a socket then am setting up a loop and connecting to the address if i have ...

I am currently developing an application that needs to communicate with a MQTT server via a socket connection. As the System.Net.Sockets API tends to ...

I am new to OS X and have to create an application having 2 parts - launch daemon and launch agent. The daemon is going to do stuff such as command ex ...

I have been studying the bonjour/NSStream sample code from lecture #17 of Stanford's CS193p course (iOS programming) on iTunes U from the winter of 20 ...