guard IPv6 stuff

disable IPv6 related stuff if feature is disabled.

Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>

include/net/route.h

@@ -55,6 +55,7 @@ struct rtentry
 #define rt_mss	rt_mtu
 
 
+#if defined __UCLIBC_HAS_IPV6__ || !defined __UCLIBC_STRICT_HEADERS__
 struct in6_rtmsg
   {
     struct in6_addr rtmsg_dst;
@@ -68,6 +69,7 @@ struct in6_rtmsg
     u_int32_t rtmsg_flags;
     int rtmsg_ifindex;
   };
+#endif
 
 
 #define	RTF_UP		0x0001		/* Route usable.  */
@@ -129,6 +131,7 @@ struct in6_rtmsg
 #define RT_CLASS_MAX		255
 
 
+#if defined __UCLIBC_HAS_IPV6__ || !defined __UCLIBC_STRICT_HEADERS__
 #define RTMSG_ACK		NLMSG_ACK
 #define RTMSG_OVERRUN		NLMSG_OVERRUN
 
@@ -141,5 +144,6 @@ struct in6_rtmsg
 #define RTMSG_CONTROL		0x40
 
 #define RTMSG_AR_FAILED		0x51	/* Address Resolution failed.  */
+#endif
 
 #endif /* net/route.h */

include/netinet/in.h

@@ -194,6 +194,7 @@ struct in_addr
 #define INADDR_MAX_LOCAL_GROUP  ((in_addr_t) 0xe00000ff) /* 224.0.0.255 */
 
 
+#if defined __UCLIBC_HAS_IPV6__ || !defined __UCLIBC_STRICT_HEADERS__
 /* IPv6 address */
 struct in6_addr
   {
@@ -218,8 +219,10 @@ libc_hidden_proto(in6addr_loopback)
 #define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
 #define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
 
-#define INET_ADDRSTRLEN 16
 #define INET6_ADDRSTRLEN 46
+#endif
+
+#define INET_ADDRSTRLEN 16
 
 
 #if 1 /*def __UCLIBC_HAS_IPV4__*/
@@ -238,6 +241,7 @@ struct sockaddr_in
   };
 #endif
 
+#if defined __UCLIBC_HAS_IPV6__ || !defined __UCLIBC_STRICT_HEADERS__
 /* Ditto, for IPv6.  */
 struct sockaddr_in6
   {
@@ -247,6 +251,7 @@ struct sockaddr_in6
     struct in6_addr sin6_addr;	/* IPv6 address */
     uint32_t sin6_scope_id;	/* IPv6 scope-id */
   };
+#endif
 
 
 #if defined __USE_MISC || defined __USE_GNU
@@ -274,6 +279,7 @@ struct ip_mreq_source
 #endif
 
 
+#if defined __UCLIBC_HAS_IPV6__ || !defined __UCLIBC_STRICT_HEADERS__
 /* Likewise, for IPv6.  */
 struct ipv6_mreq
   {
@@ -283,6 +289,7 @@ struct ipv6_mreq
     /* local interface */
     unsigned int ipv6mr_interface;
   };
+#endif
 
 
 #if defined __USE_MISC || defined __USE_GNU
@@ -403,6 +410,7 @@ libc_hidden_proto(htons)
 # endif
 #endif
 
+#if defined __UCLIBC_HAS_IPV6__ || !defined __UCLIBC_STRICT_HEADERS__
 #define IN6_IS_ADDR_UNSPECIFIED(a) \
 	(((__const uint32_t *) (a))[0] == 0				      \
 	 && ((__const uint32_t *) (a))[1] == 0				      \
@@ -441,6 +449,7 @@ libc_hidden_proto(htons)
 	 && (((__const uint32_t *) (a))[1] == ((__const uint32_t *) (b))[1])  \
 	 && (((__const uint32_t *) (a))[2] == ((__const uint32_t *) (b))[2])  \
 	 && (((__const uint32_t *) (a))[3] == ((__const uint32_t *) (b))[3]))
+#endif
 
 #if defined __USE_MISC || defined __USE_GNU
 /* Bind socket to a privileged IP port.  */
@@ -455,6 +464,7 @@ extern int bindresvport6 (int __sockfd, struct sockaddr_in6 *__sock_in)
 #endif
 
 
+#if defined __UCLIBC_HAS_IPV6__ || !defined __UCLIBC_STRICT_HEADERS__
 #define IN6_IS_ADDR_MC_NODELOCAL(a) \
 	(IN6_IS_ADDR_MULTICAST(a)					      \
 	 && ((((__const uint8_t *) (a))[1] & 0xf) == 0x1))
@@ -476,13 +486,14 @@ extern int bindresvport6 (int __sockfd, struct sockaddr_in6 *__sock_in)
 	 && ((((__const uint8_t *) (a))[1] & 0xf) == 0xe))
 
 
-#if defined __USE_GNU && defined __UCLIBC_HAS_IPV6__
+#ifdef __USE_GNU
 /* IPv6 packet information.  */
 struct in6_pktinfo
   {
     struct in6_addr ipi6_addr;	/* src/dst IPv6 address */
     unsigned int ipi6_ifindex;	/* send/recv interface index */
   };
+#endif
 
 /* IPv6 MTU information.  */
 struct ip6_mtuinfo
@@ -493,6 +504,7 @@ struct ip6_mtuinfo
 #endif
 #if 0 /*def __USE_GNU*/
 
+#ifdef __UCLIBC_HAS_IPV6__
 /* Obsolete hop-by-hop and Destination Options Processing (RFC 2292).  */
 extern int inet6_option_space (int __nbytes)
      __THROW __attribute_deprecated__;
@@ -540,6 +552,7 @@ extern int inet6_rth_reverse (__const void *__in, void *__out) __THROW;
 extern int inet6_rth_segments (__const void *__bp) __THROW;
 extern struct in6_addr *inet6_rth_getaddr (__const void *__bp, int __index)
      __THROW;
+#endif
 
 
 /* Multicast source filter support.  */

libc/inet/getaddrinfo.c

@@ -639,9 +639,13 @@ gaih_inet(const char *name, const struct gaih_service *service,
 					tmpbuflen *= 2;
 					tmpbuf = alloca(tmpbuflen);
 					rc = gethostbyaddr_r(at2->addr,
+#ifdef __UCLIBC_HAS_IPV6__
 						((at2->family == AF_INET6)
 						 ? sizeof(struct in6_addr)
 						 : sizeof(struct in_addr)),
+#else
+						sizeof(struct in_addr),
+#endif
 						at2->family,
 						&th, tmpbuf, tmpbuflen,
 						&h, &herrno);

libc/inet/ifaddrs.c

@@ -59,7 +59,9 @@ struct ifaddrs_storage
     struct sockaddr sa;
     struct sockaddr_ll sl;
     struct sockaddr_in s4;
+#ifdef __UCLIBC_HAS_IPV6__
     struct sockaddr_in6 s6;
+#endif
   } addr, netmask, broadaddr;
   char name[IF_NAMESIZE + 1];
 };
@@ -621,6 +623,7 @@ getifaddrs (struct ifaddrs **ifap)
 				      rta_data, rta_payload);
 			    break;
 
+#ifdef __UCLIBC_HAS_IPV6__
 			  case AF_INET6:
 			    /* Size must match that of an address for IPv6.  */
 			    if (rta_payload == 16)
@@ -633,6 +636,7 @@ getifaddrs (struct ifaddrs **ifap)
 				    = ifam->ifa_index;
 			      }
 			    break;
+#endif
 
 			  default:
 			    if (rta_payload <= sizeof (ifas[ifa_index].addr))
@@ -668,6 +672,7 @@ getifaddrs (struct ifaddrs **ifap)
 				  rta_data, rta_payload);
 			  break;
 
+#ifdef __UCLIBC_HAS_IPV6__
 			case AF_INET6:
 			  /* Size must match that of an address for IPv6.  */
 			  if (rta_payload == 16)
@@ -680,6 +685,7 @@ getifaddrs (struct ifaddrs **ifap)
 				  ifam->ifa_index;
 			    }
 			  break;
+#endif
 
 			default:
 			  if (rta_payload <= sizeof (ifas[ifa_index].addr))
@@ -709,6 +715,7 @@ getifaddrs (struct ifaddrs **ifap)
 				    rta_data, rta_payload);
 			  break;
 
+#ifdef __UCLIBC_HAS_IPV6__
 			case AF_INET6:
 			  /* Size must match that of an address for IPv6.  */
 			  if (rta_payload == 16)
@@ -721,6 +728,7 @@ getifaddrs (struct ifaddrs **ifap)
 				  = ifam->ifa_index;
 			    }
 			  break;
+#endif
 
 			default:
 			  if (rta_payload <= sizeof (ifas[ifa_index].addr))
@@ -777,10 +785,12 @@ getifaddrs (struct ifaddrs **ifap)
 		      max_prefixlen = 32;
 		      break;
 
+#ifdef __UCLIBC_HAS_IPV6__
 		    case AF_INET6:
 		      cp = (char *) &ifas[ifa_index].netmask.s6.sin6_addr;
 		      max_prefixlen = 128;
 		      break;
+#endif
 		    }
 
 		  ifas[ifa_index].ifa.ifa_netmask->sa_family

libc/inet/rpc/sa_len.c

@@ -52,10 +52,14 @@ int __libc_sa_len (sa_family_t af)
 #endif
     case AF_INET:
       return sizeof (struct sockaddr_in);
+#ifdef __UCLIBC_HAS_IPV6__
     case AF_INET6:
       return sizeof (struct sockaddr_in6);
+#endif
+#if 0
     case AF_IPX:
       return sizeof (struct sockaddr_ipx);
+#endif
     case AF_LOCAL:
       return sizeof (struct sockaddr_un);
     }