Convert validity checks of IP_Address to is_valid method.

core/io/ip.cpp

@@ -82,7 +82,7 @@ struct _IP_ResolverPrivate {
 				continue;
 			queue[i].response=IP::get_singleton()->resolve_hostname(queue[i].hostname, queue[i].type);
 
-			if (queue[i].response==IP_Address())
+			if (!queue[i].response.is_valid())
 				queue[i].status=IP::RESOLVER_STATUS_ERROR;
 			else
 				queue[i].status=IP::RESOLVER_STATUS_DONE;

core/io/ip_address.cpp

@@ -38,6 +38,9 @@ IP_Address::operator Variant() const {
 
 IP_Address::operator String() const {
 
+	if(!valid)
+		return "";
+
 	if(is_ipv4())
 		// IPv4 address mapped to IPv6
 		return itos(field8[12])+"."+itos(field8[13])+"."+itos(field8[14])+"."+itos(field8[15]);
@@ -171,6 +174,7 @@ void IP_Address::_parse_ipv4(const String& p_string, int p_start, uint8_t* p_ret
 void IP_Address::clear() {
 
 	memset(&field8[0], 0, sizeof(field8));
+	valid = false;
 };
 
 bool IP_Address::is_ipv4() const{
@@ -184,6 +188,7 @@ const uint8_t *IP_Address::get_ipv4() const{
 
 void IP_Address::set_ipv4(const uint8_t *p_ip) {
 	clear();
+	valid = true;
 	field16[5]=0xffff;
 	field32[3]=*((const uint32_t *)p_ip);
 }
@@ -194,6 +199,7 @@ const uint8_t *IP_Address::get_ipv6() const{
 
 void IP_Address::set_ipv6(const uint8_t *p_buf) {
 	clear();
+	valid = true;
 	for (int i=0; i<16; i++)
 		field8[i] = p_buf[i];
 }
@@ -201,14 +207,21 @@ void IP_Address::set_ipv6(const uint8_t *p_buf) {
 IP_Address::IP_Address(const String& p_string) {
 
 	clear();
-	if (p_string.find(":") >= 0) {
 
+	if (p_string.find(":") >= 0) {
+		// IPv6
 		_parse_ipv6(p_string);
-	} else {
-		// Mapped to IPv6
+		valid = true;
+
+	} else if (p_string.get_slice_count(".") == 4) {
+		// IPv4 (mapped to IPv6 internally)
 		field16[5] = 0xffff;
 		_parse_ipv4(p_string, 0, &field8[12]);
-	};
+		valid = true;
+
+	} else {
+		ERR_PRINT("Invalid IP address");
+	}
 }
 
 _FORCE_INLINE_ static void _32_to_buf(uint8_t* p_dst, uint32_t p_n) {
@@ -222,6 +235,7 @@ _FORCE_INLINE_ static void _32_to_buf(uint8_t* p_dst, uint32_t p_n) {
 IP_Address::IP_Address(uint32_t p_a,uint32_t p_b,uint32_t p_c,uint32_t p_d, bool is_v6) {
 
 	clear();
+	valid = true;
 	if (!is_v6) {
 		// Mapped to IPv6
 		field16[5]=0xffff;

core/io/ip_address.h

@@ -41,6 +41,8 @@ private:
 		uint32_t field32[4];
 	};
 
+	bool valid;
+
 protected:
 	void _parse_ipv6(const String& p_string);
 	void _parse_ipv4(const String& p_string, int p_start, uint8_t* p_ret);
@@ -48,12 +50,16 @@ protected:
 public:
 	//operator Variant() const;
 	bool operator==(const IP_Address& p_ip) const {
+		if (p_ip.valid != valid) return false;
+		if (!valid) return false;
 		for (int i=0; i<4; i++)
 			if (field32[i] != p_ip.field32[i])
 				return false;
 		return true;
 	}
 	bool operator!=(const IP_Address& p_ip) const {
+		if (p_ip.valid != valid) return true;
+		if (!valid) return true;
 		for (int i=0; i<4; i++)
 			if (field32[i] != p_ip.field32[i])
 				return true;
@@ -61,6 +67,7 @@ public:
 	}
 
 	void clear();
+	bool is_valid() const {return valid;}
 	bool is_ipv4() const;
 	const uint8_t *get_ipv4() const;
 	void set_ipv4(const uint8_t *p_ip);

core/io/packet_peer_udp.cpp

@@ -43,7 +43,7 @@ Error PacketPeerUDP::_set_dest_address(const String& p_address, int p_port) {
 		ip=p_address;
 	} else {
 		ip=IP::get_singleton()->resolve_hostname(p_address, ip_type);
-		if (ip==IP_Address())
+		if (!ip.is_valid())
 			return ERR_CANT_RESOLVE;
 	}
 

core/io/stream_peer_tcp.cpp

@@ -37,7 +37,7 @@ Error StreamPeerTCP::_connect(const String& p_address,int p_port) {
 		ip=p_address;
 	} else {
 		ip=IP::get_singleton()->resolve_hostname(p_address, ip_type);
-		if (ip==IP_Address())
+		if (!ip.is_valid())
 			return ERR_CANT_RESOLVE;
 	}
 

drivers/unix/packet_peer_udp_posix.cpp

@@ -96,7 +96,7 @@ Error PacketPeerUDPPosix::get_packet(const uint8_t **r_buffer,int &r_buffer_size
 }
 Error PacketPeerUDPPosix::put_packet(const uint8_t *p_buffer,int p_buffer_size){
 
-	ERR_FAIL_COND_V(peer_addr == IP_Address(), ERR_UNCONFIGURED);
+	ERR_FAIL_COND_V(!peer_addr.is_valid(), ERR_UNCONFIGURED);
 
 	int sock = _get_socket();
 	ERR_FAIL_COND_V( sock == -1, FAILED );

drivers/unix/socket_helpers.h

@@ -16,7 +16,7 @@ static size_t _set_sockaddr(struct sockaddr_storage* p_addr, const IP_Address& p
 
 	memset(p_addr, 0, sizeof(struct sockaddr_storage));
 
-	ERR_FAIL_COND_V(p_ip==IP_Address(),0);
+	ERR_FAIL_COND_V(!p_ip.is_valid(),0);
 
 	// IPv6 socket
 	if (p_sock_type == IP::TYPE_IPV6 || p_sock_type == IP::TYPE_ANY) {

drivers/unix/stream_peer_tcp_posix.cpp

@@ -142,7 +142,7 @@ void StreamPeerTCPPosix::set_socket(int p_sockfd, IP_Address p_host, int p_port,
 
 Error StreamPeerTCPPosix::connect_to_host(const IP_Address& p_host, uint16_t p_port) {
 
-	ERR_FAIL_COND_V( p_host == IP_Address(), ERR_INVALID_PARAMETER);
+	ERR_FAIL_COND_V( !p_host.is_valid(), ERR_INVALID_PARAMETER);
 
 	sock_type = p_host.is_ipv4() ? IP::TYPE_IPV4 : IP::TYPE_IPV6;
 	sockfd = _socket_create(sock_type, SOCK_STREAM, IPPROTO_TCP);

platform/windows/stream_peer_winsock.cpp

@@ -299,7 +299,7 @@ void StreamPeerWinsock::set_socket(int p_sockfd, IP_Address p_host, int p_port,
 
 Error StreamPeerWinsock::connect_to_host(const IP_Address& p_host, uint16_t p_port) {
 
-	ERR_FAIL_COND_V( p_host == IP_Address(), ERR_INVALID_PARAMETER);
+	ERR_FAIL_COND_V( !p_host.is_valid(), ERR_INVALID_PARAMETER);
 
 	sock_type = p_host.is_ipv4() ? IP::TYPE_IPV4 : IP::TYPE_IPV6;
 	sockfd = _socket_create(sock_type, SOCK_STREAM, IPPROTO_TCP);