Add full IPV6 support

data/Makefile

@@ -1,6 +1,6 @@
 IP_DATA   = ../src/ip_data.c
 PROVIDERS = afrinic arin apnic lacnic ripencc
-DEST      = prefix_res_ipv4
+DEST      = prefix_res
 MD5 = $(addsuffix .md5,$(PROVIDERS))
 
 all: clean_md5 $(MD5) $(IP_DATA)
@@ -21,7 +21,7 @@ $(PROVIDERS):
 	@md5sum -c $@ || wget "ftp://ftp.ripe.net/pub/stats/$(basename $@)/delegated-$(basename $@)-extended-latest" -O $(basename $@) ; true
 
 $(DEST): $(PROVIDERS)
-	@cat $(PROVIDERS) | grep -v asn | grep -v summary | grep -v '#' | grep ipv4 | sort -n -k 4 -t '|' > $(DEST)
+	@cat $(PROVIDERS) | grep -v asn | grep -v summary | grep -v '#' | grep ipv[46] | sort -n -k 4 -t '|' > $(DEST)
 
 $(IP_DATA): $(DEST)
 	@echo "Rebuild ip_data.c"