add routines for checking broadcast and multicast

gyf304 · Nov 25, 2023 · a251874 · a251874
1 parent 9e61643
commit a251874
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Showing 2 changed files with 8 additions and 0 deletions.
diff --git a/src/ip.cpp b/src/ip.cpp
@@ -34,6 +34,12 @@ namespace lpvpn::ip {
 		}
 		return ret;
 	}
+	bool Address4::isBroadcast() const {
+		return toUint32() == 0xFFFFFFFF;
+	}
+	bool Address4::isMulticast() const {
+		return (addr[0] & 0xF0) == 0xE0;
+	}
 	bool Address4::operator==(const Address4& other) const {
 		return addr == other.addr;
 	}

diff --git a/src/ip.h b/src/ip.h
@@ -25,6 +25,8 @@ namespace lpvpn::ip {
 		Address4(uint32_t addr);
 		~Address4();
 		uint32_t toUint32() const;
+		bool isBroadcast() const;
+		bool isMulticast() const;
 		bool operator==(const Address4& other) const;
 		Address4 operator+(uint32_t other) const;
 		Address4 operator-(uint32_t other) const;