efn/main.c

int
main(int argc, char **argv) {
	static char buf[256];
	while(1) {
		char *com = fgets(buf, sizeof(buf), stdin);
		if (com != NULL) {
			if (commands[com[0]] != NULL) commands[com[0]](buf);
			else puts("invalid command.");
		}
	}
	return 0;
}