provide ntoh*/hton* prototypes in netport.h

bsd/porting/netport.h

@@ -176,6 +176,17 @@ typedef uintptr_t __uintptr_t;
 #undef INVARIANTS
 #endif
 
+
+#undef htonl
+#undef htons
+#undef ntohl
+#undef ntohs
+uint32_t	 htonl(uint32_t);
+uint16_t	 htons(uint16_t);
+uint32_t	 ntohl(uint32_t);
+uint16_t	 ntohs(uint16_t);
+
+
 struct malloc_type {
     int unused;
 };