1 files changed, 79 insertions, 0 deletions
diff --git a/rtrlib/lib/ip.c b/rtrlib/lib/ip.c
new file mode 100644
index 0000000..39df774
--- /dev/null
+++ b/rtrlib/lib/ip.c
@@ -0,0 +1,79 @@
+/*
+ * This file is part of RTRlib.
+ *
+ * This file is subject to the terms and conditions of the MIT license.
+ * See the file LICENSE in the top level directory for more details.
+ *
+ * Website: http://rtrlib.realmv6.org/
+ */
+
+#include "ip_private.h"
+
+#include "rtrlib/rtrlib_export_private.h"
+
+#include <stdbool.h>
+#include <string.h>
+
+bool lrtr_ip_addr_is_zero(const struct lrtr_ip_addr prefix)
+{
+	if (prefix.ver == LRTR_IPV6) {
+		if (prefix.u.addr6.addr[0] == 0 && prefix.u.addr6.addr[1] == 0 && prefix.u.addr6.addr[2] == 0 &&
+		    prefix.u.addr6.addr[3] == 0) {
+			return true;
+		}
+	} else if (prefix.u.addr4.addr == 0) {
+		return true;
+	}
+
+	return false;
+}
+
+struct lrtr_ip_addr lrtr_ip_addr_get_bits(const struct lrtr_ip_addr *val, const uint8_t from, const uint8_t number)
+{
+	struct lrtr_ip_addr result;
+
+	if (val->ver == LRTR_IPV6) {
+		result.ver = LRTR_IPV6;
+		result.u.addr6 = lrtr_ipv6_get_bits(&(val->u.addr6), from, number);
+	} else {
+		result.ver = LRTR_IPV4;
+		result.u.addr4 = lrtr_ipv4_get_bits(&(val->u.addr4), from, number);
+	}
+	return result;
+}
+
+RTRLIB_EXPORT bool lrtr_ip_addr_equal(const struct lrtr_ip_addr a, const struct lrtr_ip_addr b)
+{
+	if (a.ver != b.ver)
+		return false;
+	if (a.ver == LRTR_IPV6)
+		return lrtr_ipv6_addr_equal(&(a.u.addr6), &(b.u.addr6));
+	return lrtr_ipv4_addr_equal(&(a.u.addr4), &(b.u.addr4));
+}
+
+RTRLIB_EXPORT int lrtr_ip_addr_to_str(const struct lrtr_ip_addr *ip, char *str, const unsigned int len)
+{
+	if (ip->ver == LRTR_IPV6)
+		return lrtr_ipv6_addr_to_str(&(ip->u.addr6), str, len);
+	return lrtr_ipv4_addr_to_str(&(ip->u.addr4), str, len);
+}
+
+RTRLIB_EXPORT int lrtr_ip_str_to_addr(const char *str, struct lrtr_ip_addr *ip)
+{
+	if (!strchr(str, ':')) {
+		ip->ver = LRTR_IPV4;
+		return lrtr_ipv4_str_to_addr(str, &(ip->u.addr4));
+	}
+	ip->ver = LRTR_IPV6;
+	return lrtr_ipv6_str_to_addr(str, &(ip->u.addr6));
+}
+
+// cppcheck-suppress unusedFunction
+RTRLIB_EXPORT bool lrtr_ip_str_cmp(const struct lrtr_ip_addr *addr1, const char *addr2)
+{
+	struct lrtr_ip_addr tmp;
+
+	if (lrtr_ip_str_to_addr(addr2, &tmp) == -1)
+		return false;
+	return lrtr_ip_addr_equal(*addr1, tmp);
+}