How do I duplicate a socket in Linux? For example, given a socket file descriptor, I’d like to be able to create another socket with the same options, bound address, etc. My interest is in sockets listening on a UDP port (so I’m fine if there is a solution specific to listening datagram/udp sockets). I’ve ..
UDP sockets have a ‘connect’ call, but do not have an ‘accept’ call for server applications. There are socket APIs that benefit performance-wise from a connected UDP socket (e.g. recvmmsg/sendmmsg) and is the best performing system call for a single-flow with very high packet rates (any thing higher requires kernel-bypass like DPDK). Anyhow, I am ..
I wrote an C++ Windows application to send datagrams. Transferring datagrams are via LAN works as it should. When I switch to WLAN, no datagrams are transferred. My understanding is, that the Windows is handling the data transmission, dependent on which connection is established. -> WiFi oder Cable. My socket configuration is: WSAStartup(MAKEWORD(2, 2), &m_wsaData); ..
I am trying to stream my desktop for a remote desktop project and for that I want to get each frame to be sent over UDP. I understand that UDP has this built in as a feature but I would like to implement the streaming part myself for better control over certain aspects. I have ..
I use the fllowing way to deal with the UDP connection for IPv4, but it seems not work in IPv6. It just like in Windows for IOCP. The listen fd will first deal with the connection and the fd allocated not work. Is there any solution? If this is a EPOLLIN event without a session ..
I am using OMNET++ INET for Ad hoc networks. I want to broadcast my message to all my neighbors in UDP. I have tried all the possible solutions in UDPBasicApp. It broadcasts a message to one node at a time which it chooses randomly if the destination is not fixed (sink) . UDPBasicBurstApp also does ..
Premise of this question is that I don’t have much knowledge on networking. I have an external cots application that works with UDP datagrams. It is able to send and receive them and I am able to set in a configuration file the current parameters for communication with other applications: UDP Connection Info: Connection Name ..
I have a UDP socket in C# that sends a message using the following code newsock.Send(sendBuffer, sendBuffer.Length, sender); where sendBuffer is a byte data type. How can I convert this message when I receive it in a UDP socket written in C++? The C++ code is the following: recvfrom(socket_desc, client_message, sizeof(client_message), 0,(struct sockaddr*)&client_addr, &client_struct_length) Source: ..
So my problem is that I have program which is sending Data to a Server whos ip is hardcoded. What I would like to do is take the UDP and TCP packets, from that program or the ports its using, and change their destination ip to a private server. The program is running on Windows. ..
Im writing a udp client/server and I’m trying to send structure throw the socket i created. however I have an error I cant solve " terminate called after throwing an instance of ‘std::bad_alloc’ what(): std::bad_alloc Aborted (core dumped)" I suspect my init function to be wrong however when i run the Init function there is ..