#include <netinet/in.h>
#include <arpa/inet.h>
-extern int flock __P((int, int));
-extern int inet_aton __P((const char *, struct in_addr *));
+extern int flock (int, int);
+extern int inet_aton (const char *, struct in_addr *);
#else /* __svr4__ */
#ifdef sun
#define SA_RESTART 0
#endif
-extern char *strdup __P((const char *));
-extern int inet_aton __P((const char *, struct in_addr *));
+extern char *strdup (const char *);
+extern int inet_aton (const char *, struct in_addr *);
#endif /* ultrix */
#ifdef BSD4_4
#endif /* BSD4_4 */
#if defined(ultrix) || defined(_IBMR2) || defined(NEED_GETUSERSHELL)
-extern char *getusershell __P((void));
+extern char *getusershell (void);
#endif
#if !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF)