Various changes for portability to FreeBSD.

Added "R" to control service resolution.

iftop.h

@@ -33,4 +33,12 @@ void ui_init(void);
 /* options.c */
 void options_read(int argc, char **argv);
 
+
+/* Make use of SIOCGIFHWADDR work on FreeBSD */
+#ifdef __BSD__
+#define SIOCGIFHWADDR SIOCGIFADDR
+#define ifr_hwaddr ifr_addr
+#endif
+
+
 #endif /* __IFTOP_H_ */