struct programmer {
	char namelen;
	char name[256];
	char capabilities;
};

vector<struct programmer> programmers;

/* server_fd is the server's file descriptor, and it works right */
while(1){
	// client connects
	client_fd = accept(server_fd, ...);
	unsigned char namelen;
	while(read(client_fd, &namelen, 1) > 0){
		if(namelen == 0){ // we have a requesting client
			while(read(client_fd, &namelen, 1)){
				// send back a programmer that fits
				for(int i = 0; i < programmers.size(); i++){
					if(programmers[i].capabilities & namelen == namelen){
						write(client_fd, &programmers[i].namelen, 1);
						write(client_fd, programmers[i].name, programmers[i].namelen);
						write(client_fd, &programmers[i].capabilities, 1);
						programmers[i] = programmers[programmers.size()];
						programmers.pop();
					}
				}
			}
		} else {
			struct programmer np;
			np.namelen = namelen;
			read(client_fd, np.name, namelen);
			read(client_fd, &np.capabilities, 1);
			programmers.push_back(np);
		}
	}
}

// Client:
/* Connect, fd is our file descriptor */
char tosend[2] = {0, 5};
write(fd, tosend, 2);
char namelen;
read(fd, &namelen, 1);
char name[256];
read(fd, name, 1);
read(fd, namelen, 1);
printf("We got %s, with capabilities %x\n", name, namelen);