MAX_SHORTSTRLEN
char aport[MAX_SHORTSTRLEN];
(void) snprintf(aport, MAX_SHORTSTRLEN, "%u", ntohs(rport));
(void) snprintf(aport, MAX_SHORTSTRLEN, "%d", lport);
(void) snprintf(aport, MAX_SHORTSTRLEN, "%u", port);
char aport[MAX_SHORTSTRLEN];
(void) snprintf(aport, MAX_SHORTSTRLEN, "%u", ntohs(rport));