initial

1 files changed, 27 insertions, 0 deletions

diff --git a/data_structures b/data_structures
new file mode 100644
index 0000000..3a1c570
--- /dev/null
+++ b/data_structures
@@ -0,0 +1,27 @@
+
+struct ipv6 {
+	union {
+		struct in6_addr addr;
+		u_int32_t       addr32[4];
+	} _ipv6;
+#define addr32 _ipv6.addr32
+};
+
+struct cidr {
+	sa_family_t ai_family;
+	union {
+		u_int32_t   addr4;
+		struct ipv6 addr6;
+	};
+	u_int8_t bits;
+};
+
+struct bl {
+	sa_family_t ai_family;
+	union {
+		u_int32_t   addr4;
+		struct ipv6 addr6;
+	};
+	int8_t b;
+	int8_t w;
+};