Cleanups for gcc4:

- Use socklen_t for socket functions
 - Remove an unnecessary extern
 - Signed/unsigned cleanups

Reviewed by:	harti

sbin/atm/atm/atm.h

@@ -191,6 +191,5 @@ size_t		compress_prefix_list(struct in_addr *, size_t);
 void		check_netif_name(const char *);
 void		sock_error(int);
 
-extern const struct proto	protos[];
 extern const struct aal		aals[];
 extern const struct encaps	encaps[];

sbin/atm/atmconfig/atmconfig_device.h

@@ -45,7 +45,7 @@ struct atmif {
 	TAILQ_ENTRY(atmif) link;
 	uint64_t	found;
 	int32_t		index;
-	u_char		*ifname;
+	char		*ifname;
 	size_t		ifnamelen;
 	uint32_t	pcr;
 	int32_t		media;

sbin/atm/ilmid/ilmid.c

@@ -1875,7 +1875,7 @@ static void
 get_local_ip (int s, long *aval)
 {
 	char			intf_name[IFNAMSIZ];
-	int			namelen = IFNAMSIZ;
+	socklen_t		namelen = IFNAMSIZ;
 	struct air_netif_rsp	*net_info = NULL;
 	struct sockaddr_in	*sain;
 
@@ -2468,7 +2468,7 @@ ilmi_do_state(void)
 			close ( ilmi_fd[intf] );
 			ilmi_fd[intf] = -1;
 		    } else {
-			bpp = (caddr_t)&buf[1];
+			bpp = &buf[1];
 			Hdr = asn_get_header(&bpp);
 
 		        if ( Log && Debug_Level > 1 )