#define MAX_DNS_PACKET_SIZE 0xffff
#ifdef NS_HFIXEDSZ /* Bind 8/9 interface */
+#if !defined(C_IN) /* AIX 5.3 already defines C_IN */
# define C_IN ns_c_in
+#endif
+#if !defined(T_A) /* AIX 5.3 already defines T_A */
# define T_A ns_t_a
+#endif
# define T_SRV ns_t_srv
#else
# ifdef HFIXEDSZ