Creating the server socket

Before entertaining the exciting parts of the HTTP server, such as message parsing, let's get the basics out of the way. Our HTTP server, like all servers, needs to create a listening socket to accept new connections. We define a function, create_socket(), for this purpose. This function begins by using getaddrinfo() to find the listening address:

/*web_server.c except*/

SOCKET create_socket(const char* host, const char *port) {
    printf("Configuring local address...\n");
    struct addrinfo hints;
    memset(&hints, 0, sizeof(hints));
    hints.ai_family = AF_INET;
    hints.ai_socktype = SOCK_STREAM;
    hints.ai_flags = AI_PASSIVE;

    struct addrinfo *bind_address;
    getaddrinfo(host, port, &hints, &bind_address);

create_socket() then continues with creating a socket using socket(), binding that socket to the listening...