use htonl/ntohl/ntohs/htons from lwip

on bigger systems, you don't simply write endian.h

address.h

@@ -26,6 +26,7 @@
 #endif
 
 #include <string.h>
+#include <stdint.h>
 
 #ifdef HAVE_NETINET_IN_H
 #include <netinet/in.h>

config.h.lwip

@@ -3,6 +3,7 @@
 
 #include <lwip/opt.h>
 #include <lwip/debug.h>
+#include <lwip/def.h> /* provide ntohs, htons */
 
 #define WITH_LWIP 1
 
@@ -13,9 +14,6 @@
  * building in */
 #define HAVE_STRNLEN 1
 
-/* provide what usually resides in arpa/inet.h: ntohs and htons. maybe it'd be a better way to just have an arpa/inet.h compatibility file in lwip? */
-#define HAVE_ENDIAN_H 1
-
 /* FIXME just a quick hack */
 #define COAP_TICKS_PER_SECOND 10
 

debug.c

@@ -20,9 +20,6 @@
 #ifdef HAVE_ARPA_INET_H
 #include <arpa/inet.h>
 #endif
-#ifdef HAVE_ENDIAN_H
-#include "endian.h"
-#endif
 
 #ifdef HAVE_TIME_H
 #include <time.h>

endian.h

@@ -1,13 +0,0 @@
-/* endianness helpers for lwip port */
-
-/* FIXME: i'm sure there is something in lwip we can use */
-
-#include <stdint.h>
-
-/* we're on little endian, ntohs & co swap */
-static inline uint16_t ntohs(uint16_t x)
-{
-	return (x << 8) | (x >> 8);
-}
-
-#define htons ntohs

net.c

@@ -25,9 +25,6 @@
 #ifdef HAVE_ARPA_INET_H
 #include <arpa/inet.h>
 #endif
-#ifdef HAVE_ENDIAN_H
-#include "endian.h"
-#endif
 
 #ifdef WITH_LWIP
 #include <lwip/pbuf.h>

pdu.c

@@ -18,9 +18,6 @@
 #ifdef HAVE_ARPA_INET_H
 #include <arpa/inet.h>
 #endif
-#ifdef HAVE_ENDIAN_H
-#include "endian.h"
-#endif
 
 #include "debug.h"
 #include "pdu.h"