Thanks, I modified the server to listen on multiple ports and to multiple clients. Post navigation ← Square Root Algorithms in Scheme Sockets Programming Example in C: Server Converts Strings to Uppercase →
This entry was posted in C, Networking on Apby Daniel Scocco. You might also like: Sockets Programming in C Using UDP Datagrams *- Read the message from the server into the buffer -*/ *- Connect the socket to the server using the address struct -*/Ĭonnect(clientSocket, (struct sockaddr *) &serverAddr, addr_size) *- Send message to the socket of the incoming connection -*/ NewSocket = accept(welcomeSocket, (struct sockaddr *) &serverStorage, &addr_size) *- Accept call creates a new socket for the incoming connection -*/ *- Listen on the socket, with 5 max connection requests queued -*/ *- Bind the address struct to the socket -*/īind(welcomeSocket, (struct sockaddr *) &serverAddr, sizeof(serverAddr)) Memset(serverAddr.sin_zero, '\0', sizeof serverAddr.sin_zero) * Set all bits of the padding field to 0 */
An SSH client is an application you install on the computer which you will use to connect to another computer or a server. ServerAddr.sin_addr.s_addr = inet_addr("127.0.0.1") In order to establish an SSH connection, you need two components: a client and the corresponding server-side component. * Set port number, using htons function to use proper byte order */ *- Configure settings of the server address struct -*/ WelcomeSocket = socket(PF_INET, SOCK_STREAM, 0) * 1) Internet domain 2) Stream socket 3) Default protocol (TCP in this case) */ Third, if you want more details about the functions or their arguments please check the man page of each one.įinally, to test the code you just need to run the server on a terminal and then run the client on a different terminal (or run the server as a background process and then run the client on the same terminal). You should implement those checks if you are going to use the code for a real project. Second, I am not doing error checking on most function calls.
If you want your code to be IPV4-IPV6 agnostic, IP agnostic and portable to different plataforms you can use the getaddrinfo() function, as explained in this tutorial. Keep in mind that I am configuring the settings manually. Basically the client connects to the server, the server sends the message “Hello World”, and the client prints the received message. Below you’ll find an example of a very simple client-server program in C.