perl: Add get_country_name() function.

This function can be used to get the stored name for a given country
code.
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

src/perl/Location.xs

@@ -243,6 +243,28 @@ lookup_asn(db, address)
 #
 # Get functions
 #
+SV*
+get_country_name(db, ccode)
+	struct loc_database* db;
+	char* ccode;
+
+	CODE:
+		RETVAL = &PL_sv_undef;
+
+		// Lookup country code
+		struct loc_country *country;
+		int err = loc_database_get_country(db, &country, ccode);
+		if(!err) {
+			// Extract the name for the given country code.
+			const char* country_name = loc_country_get_name(country);
+			RETVAL = newSVpv(country_name, strlen(country_name));
+
+			loc_country_unref(country);
+		}
+
+	OUTPUT:
+		RETVAL
+
 SV*
 get_continent_code(db, ccode)
 	struct loc_database* db;