diff --git a/include/ntapi/nt_socket.h b/include/ntapi/nt_socket.h
index bcb1722..55b2bb1 100644
--- a/include/ntapi/nt_socket.h
+++ b/include/ntapi/nt_socket.h
@@ -381,6 +381,8 @@ typedef int32_t __cdecl ntapi_sc_send(
 	__in	const void *		buffer,
 	__in	size_t			len,
 	__out	ssize_t *		bytes_sent	__optional,
+	__in	const nt_sockaddr *	addr		__optional,
+	__in	size_t			addrlen		__optional,
 	__in	uintptr_t		afdflags	__optional,
 	__in	uintptr_t		tdiflags	__optional,
 	__out	nt_io_status_block *	iosb		__optional);
diff --git a/src/socket/ntapi_sc_send.c b/src/socket/ntapi_sc_send.c
index 9f472f2..6810bb6 100644
--- a/src/socket/ntapi_sc_send.c
+++ b/src/socket/ntapi_sc_send.c
@@ -11,31 +11,62 @@
 #include <ntapi/ntapi.h>
 #include "ntapi_impl.h"
 
+
+typedef struct _nt_afd_send_udp_info {
+	nt_afd_send_info	afd_send;
+	uint32_t		afd_reserved[8];
+	void *			pmeta;
+	uint32_t		afd_unknown[4];
+	uint32_t		extlen;
+	uint32_t		unknown;
+	uint32_t		addrlen;
+	uint32_t		reserved;
+	const nt_sockaddr *	addr;
+} nt_afd_send_udp_info;
+
+
 int32_t __cdecl __ntapi_sc_send(
 	__in		nt_socket *		hssocket,
 	__in		const void *		buffer,
 	__in		size_t			len,
 	__out		ssize_t *		bytes_sent	__optional,
+	__in		const nt_sockaddr *	addr		__optional,
+	__in		size_t			addrlen		__optional,
 	__in		uintptr_t		afdflags	__optional,
 	__in		uintptr_t		tdiflags	__optional,
 	__out		nt_io_status_block *	iosb		__optional)
 {
 	nt_afd_buffer		afd_buffer;
-	nt_afd_send_info	afd_send;
+	nt_afd_send_udp_info	afd_send;
 	nt_io_status_block	siosb;
 
+	if (addrlen && (addrlen != sizeof(nt_sockaddr_in4))
+		    && (addrlen != sizeof(nt_sockaddr_in6)))
+		return NT_STATUS_INVALID_PARAMETER_6;
+
 	iosb = iosb ? iosb : &siosb;
 
+	/* conditional connect */
+	if (addrlen) {
+		__ntapi->tt_aligned_block_memset(
+			&afd_send,
+			0,sizeof(afd_send));
+
+		afd_send.pmeta    = &afd_send.extlen;
+		afd_send.addrlen  = addrlen;
+		afd_send.addr     = addr;
+	}
+
 	/* afd_buffer */
 	afd_buffer.length = len;
 	afd_buffer.buffer = (char *)buffer;
 
-	/* afd_send */
-	afd_send.afd_buffer_array = &afd_buffer;
-	afd_send.buffer_count     = 1;
+	/* afd_send.afd_send */
+	afd_send.afd_send.afd_buffer_array = &afd_buffer;
+	afd_send.afd_send.buffer_count     = 1;
 
-	afd_send.afd_flags = (uint32_t)afdflags;
-	afd_send.tdi_flags = (uint32_t)tdiflags;
+	afd_send.afd_send.afd_flags = (uint32_t)afdflags;
+	afd_send.afd_send.tdi_flags = (uint32_t)tdiflags;
 
 	hssocket->iostatus = __ntapi->zw_device_io_control_file(
 			hssocket->hsocket,
@@ -43,9 +74,9 @@ int32_t __cdecl __ntapi_sc_send(
 			0,
 			0,
 			iosb,
-			NT_AFD_IOCTL_SEND,
+			addrlen ? NT_AFD_IOCTL_UDP_SEND : NT_AFD_IOCTL_SEND,
 			&afd_send,
-			sizeof(afd_send),
+			addrlen ? sizeof(afd_send) : sizeof(afd_send.afd_send),
 			0,
 			0);