include: Add WSAID_WSASENDMSG extension guid.

include/mswsock.h

@@ -118,7 +118,7 @@ extern "C" {
 #define WSAID_CONNECTEX \
 	{0x25a207b9,0xddf3,0x4660,{0x8e,0xe9,0x76,0xe5,0x8c,0x74,0x06,0x3e}}
 #define WSAID_DISCONNECTEX \
-	{0x7fda2e11,0x8630,0x436f,{0xa0, 0x31, 0xf5, 0x36, 0xa6, 0xee, 0xc1, 0x57}}
+	{0x7fda2e11,0x8630,0x436f,{0xa0,0x31,0xf5,0x36,0xa6,0xee,0xc1,0x57}}
 #define WSAID_GETACCEPTEXSOCKADDRS \
 	{0xb5367df2,0xcbac,0x11cf,{0x95,0xca,0x00,0x80,0x5f,0x48,0xa1,0x92}}
 #define WSAID_TRANSMITFILE \
@@ -127,6 +127,8 @@ extern "C" {
 	{0xd9689da0,0x1f90,0x11d3,{0x99,0x71,0x00,0xc0,0x4f,0x68,0xc8,0x76}}
 #define WSAID_WSARECVMSG \
 	{0xf689d7c8,0x6f1f,0x436b,{0x8a,0x53,0xe5,0x4f,0xe3,0x51,0xc3,0x22}}
+#define WSAID_WSASENDMSG \
+	{0xa441e712,0x754f,0x43ca,{0x84,0xa7,0x0d,0xee,0x44,0xcf,0x60,0x6d}}
 
 typedef struct _TRANSMIT_FILE_BUFFERS {
     LPVOID  Head;
@@ -170,6 +172,7 @@ typedef VOID (WINAPI * LPFN_GETACCEPTEXSOCKADDRS)(PVOID, DWORD, DWORD, DWORD, st
 typedef BOOL (WINAPI * LPFN_TRANSMITFILE)(SOCKET, HANDLE, DWORD, DWORD, LPOVERLAPPED, LPTRANSMIT_FILE_BUFFERS, DWORD);
 typedef BOOL (WINAPI * LPFN_TRANSMITPACKETS)(SOCKET, LPTRANSMIT_PACKETS_ELEMENT, DWORD, DWORD, LPOVERLAPPED, DWORD);
 typedef INT  (WINAPI * LPFN_WSARECVMSG)(SOCKET, LPWSAMSG, LPDWORD, LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE);
+typedef INT  (WINAPI * LPFN_WSASENDMSG)(SOCKET, LPWSAMSG, DWORD, LPDWORD, LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE);
 
 BOOL WINAPI AcceptEx(SOCKET, SOCKET, PVOID, DWORD, DWORD, DWORD, LPDWORD, LPOVERLAPPED);
 VOID WINAPI GetAcceptExSockaddrs(PVOID, DWORD, DWORD, DWORD, struct sockaddr **, LPINT, struct sockaddr **, LPINT);