setting up a network server

int status;
struct addrinfo hints;
struct addrinfo *servinfo;  // will point to the results
 
memset(&hints, 0, sizeof hints); // make sure the struct is empty
hints.ai_family = AF_UNSPEC;     // don't care IPv4 or IPv6
hints.ai_socktype = SOCK_STREAM; // TCP stream sockets
hints.ai_flags = AI_PASSIVE;     // fill in my IP for me
 
if ((status = getaddrinfo(NULL, "3490", &hints, &servinfo)) != 0) {
    fprintf(stderr, "getaddrinfo error: %s\n", gai_strerror(status));
    exit(1);
}
 
// servinfo now points to a linked list of 1 or more struct addrinfos
 
// ... do everything until you don't need servinfo anymore ....
 
freeaddrinfo(servinfo); // free the linked-list