remove support for non-ANSI compilation

@@ -16,10 +16,12 @@
  * fields enclosed by brackets "[]" replaced with your own identifying
  * information: Portions Copyright [yyyy] [name of copyright owner]
  *
  * CDDL HEADER END
  *
+ * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+ *
  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  *
  * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
  */

@@ -52,11 +54,10 @@
 
 /*
  * External definitions for
  * functions in inet(3N)
  */
-#ifdef __STDC__
 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
 extern int inet_net_pton(int, const char *, void *, size_t);
 extern boolean_t inet_matchaddr(const void *, const char *);
 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
 

@@ -86,28 +87,10 @@
 extern int inet_aton(const char *, struct in_addr *);
 
 extern uint_t inet_nsap_addr(const char *, uchar_t *, int);
 extern char *inet_nsap_ntoa(int, const uchar_t *, char *);
 
-#else
-unsigned long inet_addr();
-char    *inet_ntoa();
-/*
- * With the introduction of CIDR the
- * following 4 routines are now considered to be Obsolete
- */
-struct  in_addr inet_makeaddr();
-unsigned long inet_network();
-extern unsigned long inet_lnaof();
-extern unsigned long inet_netof();
-
-extern int inet_pton();
-extern const char *inet_ntop();
-extern int inet_aton();
-
-#endif
-
 #ifdef  __cplusplus
 }
 #endif
 
 #endif  /* _ARPA_INET_H */