-const char* socket_state_to_string(SocketState i);
-SocketState socket_state_from_string(const char *s);
+const char* socket_state_to_string(SocketState i) _const_;
+SocketState socket_state_from_string(const char *s) _pure_;
+
+const char* socket_exec_command_to_string(SocketExecCommand i) _const_;
+SocketExecCommand socket_exec_command_from_string(const char *s) _pure_;
+
+const char* socket_result_to_string(SocketResult i) _const_;
+SocketResult socket_result_from_string(const char *s) _pure_;