Move the typedefs for in_{addr,port}_t from <sys/types.h> to

<netinet/in.h> and <arpa/inet.h>
ok and ports test naddy@ (thanks!)
ok krw@ beck@ millert@

src/include/arpa/inet.h

@@ -1,4 +1,4 @@
-/*	$OpenBSD: inet.h,v 1.19 2015/09/14 08:24:37 guenther Exp $	*/
+/*	$OpenBSD: inet.h,v 1.20 2017/02/04 02:54:33 guenther Exp $	*/
 
 /*
  * ++Copyright++ 1983, 1993
@@ -61,9 +61,9 @@
 
 /* External definitions for functions in inet(3) */
 
-#include <sys/types.h>
+#include <sys/cdefs.h>
+#include <sys/_endian.h>
 
-/* <sys/_endian.h> is pulled in by <sys/types.h> */
 #ifndef htons
 #define htons(x)	__htobe16(x)
 #define htonl(x)	__htobe32(x)
@@ -76,6 +76,12 @@
 typedef	__socklen_t	socklen_t;	/* length type for network syscalls */
 #endif
 
+#ifndef _IN_TYPES_DEFINED_
+#define _IN_TYPES_DEFINED_
+typedef __in_addr_t	in_addr_t;	/* base type for internet address */
+typedef __in_port_t	in_port_t;	/* IP port type */
+#endif
+
 /*
  * Buffer lengths for strings containing printable IP addresses
  */
@@ -97,6 +103,15 @@ struct in_addr {
 #endif
 
 
+#if __BSD_VISIBLE
+/* need this for the non-standard stuff */
+#ifndef _SIZE_T_DEFINED_
+#define _SIZE_T_DEFINED_
+typedef __size_t	size_t;
+#endif
+#endif
+
+
 __BEGIN_DECLS
 in_addr_t	 inet_addr(const char *);
 char		*inet_ntoa(struct in_addr);