* include/mswsock.h: New file.

	* include/ws2tcpip.h: New file.
	* include/winsock.h (IPPROTO_IGMP): New define.
	(IPPROTO_GGP): Correct value.
	(SO_* macros): Remove mswsock defines.
	(TCP_BSDURGENT): Likewise.
	(IP_* macros): Add comment warning of WinSock2 incompatibility
	(WSARecvEx): Remove mswsock prototype.
	(TransmitFile): Likewise.
	(AcceptEx): Likewise.
	(GetAcceptExSockaddrs): Likewise.
	(struct _TRANSMIT_FILE_BUFFERS): Remove mswsock definition.
	(#include <mswsock.h>): Add directive and explanatory comment
	* include/winsock2.h (header guard): add guard for  _WINSOCK_H
	(_WINSOCK_H): Define to prevent later inclusion of winsock.h
	(#include <winsock.h>): Replace directive with winsock.h file content
	The following changes apply to the merged file:
	(FD_SET): Keep winsock2.h definition, delete winsock.h definition
	(SOMAXCONN): Likewise
	(#include <nspapi.h>): Move - don't include until LPSOCKADDR defined
	(IP_* macros): Delete WinSock1 definitions (WinSock2 definitions now
	in ws2tcpip.h)
	(struct ip_mreq): Delete (now defined in ws2tcpip.h for WinSock2)
	(FD_*_BIT and FD_* defines): Place together and extend to
	FD_MAX_EVENTS 10
	(AF* defines): Extend to AF_MAX 10
	(WSAIsBlocking): #if 0 out prototype (N/A in WinSock2)
	(WSAUnhookBlockingHook): Likewise.
	(WSASetBlockingHook): Likewise.
	(WSACancelBlockingCall): Likewise.
	(WSAEINPROGRESS): Comment as not raised in WinSock2.
	(#include <mswsock.h>): Delete directive inherited from winsock.h
	(WSA_QOS* defines): Add QualityOfService error codes.
	(SIO_* defines): Add new macros
	* include/ipexport.h (IP_STATUS flags): Add definitions.
	(IP_FLAG_DF): Likewise.
	(IP_OPT_* ): Likewise.
	(struct ip_option_information): Likewise.
	(struct icmp_echo_reply): Likewise.

6 files changed, 870 insertions, 71 deletions

diff --git a/winsup/w32api/ChangeLog b/winsup/w32api/ChangeLog
index 58152d2db..b7aebb99e 100644
--- a/winsup/w32api/ChangeLog
+++ b/winsup/w32api/ChangeLog
@@ -1,6 +1,48 @@
 
 2001-02-21  Danny Smith <dannysmith@users.sourceforge.net>
 
+	* include/mswsock.h: New file.
+	* include/ws2tcpip.h: New file.
+	* include/winsock.h (IPPROTO_IGMP): New define.
+	(IPPROTO_GGP): Correct value.		
+	(SO_* macros): Remove mswsock defines.
+	(TCP_BSDURGENT): Likewise.
+	(IP_* macros): Add comment warning of WinSock2 incompatibility
+	(WSARecvEx): Remove mswsock prototype.
+	(TransmitFile): Likewise.
+	(AcceptEx): Likewise.
+	(GetAcceptExSockaddrs): Likewise.
+	(struct _TRANSMIT_FILE_BUFFERS): Remove mswsock definition.
+	(#include <mswsock.h>): Add directive and explanatory comment
+	* include/winsock2.h (header guard): add guard for  _WINSOCK_H 
+	(_WINSOCK_H): Define to prevent later inclusion of winsock.h
+	(#include <winsock.h>): Replace directive with winsock.h file content
+	The following changes apply to the merged file: 
+	(FD_SET): Keep winsock2.h definition, delete winsock.h definition
+	(SOMAXCONN): Likewise
+	(#include <nspapi.h>): Move - don't include until LPSOCKADDR defined
+	(IP_* macros): Delete WinSock1 definitions (WinSock2 definitions now 
+	in ws2tcpip.h)
+	(struct ip_mreq): Delete (now defined in ws2tcpip.h for WinSock2)
+	(FD_*_BIT and FD_* defines): Place together and extend to 
+	FD_MAX_EVENTS 10
+	(AF* defines): Extend to AF_MAX 10
+	(WSAIsBlocking): #if 0 out prototype (N/A in WinSock2)
+	(WSAUnhookBlockingHook): Likewise.
+	(WSASetBlockingHook): Likewise.
+	(WSACancelBlockingCall): Likewise.
+	(WSAEINPROGRESS): Comment as not raised in WinSock2.
+	(#include <mswsock.h>): Delete directive inherited from winsock.h
+	(WSA_QOS* defines): Add QualityOfService error codes.
+	(SIO_* defines): Add new macros
+	* include/ipexport.h (IP_STATUS flags): Add definitions.
+	(IP_FLAG_DF): Likewise.
+	(IP_OPT_* ): Likewise.
+	(struct ip_option_information): Likewise.
+	(struct icmp_echo_reply): Likewise.
+
+2001-02-21  Danny Smith <dannysmith@users.sourceforge.net>
+
 	* include/commctrl.h: Revert TEXT change.
 	* include/lmalert.h: Ditto.
 	* include/lmcons.h: Ditto.
diff --git a/winsup/w32api/include/ipexport.h b/winsup/w32api/include/ipexport.h
index bcff27268..9c9932545 100644
--- a/winsup/w32api/include/ipexport.h
+++ b/winsup/w32api/include/ipexport.h
@@ -7,7 +7,65 @@ extern "C" {
 #define ANY_SIZE 1
 #endif
 #define MAX_ADAPTER_NAME 128
+/* IP STATUS flags */
+#define IP_STATUS_BASE 11000
+#define IP_SUCCESS  0
+#define IP_BUF_TOO_SMALL    (IP_STATUS_BASE + 1)
+#define IP_DEST_NET_UNREACHABLE (IP_STATUS_BASE + 2)
+#define IP_DEST_HOST_UNREACHABLE    (IP_STATUS_BASE + 3)
+#define IP_DEST_PROT_UNREACHABLE    (IP_STATUS_BASE + 4)
+#define IP_DEST_PORT_UNREACHABLE    (IP_STATUS_BASE + 5)
+#define IP_NO_RESOURCES (IP_STATUS_BASE + 6)
+#define IP_BAD_OPTION   (IP_STATUS_BASE + 7)
+#define IP_HW_ERROR (IP_STATUS_BASE + 8)
+#define IP_PACKET_TOO_BIG   (IP_STATUS_BASE + 9)
+#define IP_REQ_TIMED_OUT    (IP_STATUS_BASE + 10)
+#define IP_BAD_REQ  (IP_STATUS_BASE + 11)
+#define IP_BAD_ROUTE    (IP_STATUS_BASE + 12)
+#define IP_TTL_EXPIRED_TRANSIT  (IP_STATUS_BASE + 13)
+#define IP_TTL_EXPIRED_REASSEM  (IP_STATUS_BASE + 14)
+#define IP_PARAM_PROBLEM    (IP_STATUS_BASE + 15)
+#define IP_SOURCE_QUENCH    (IP_STATUS_BASE + 16)
+#define IP_OPTION_TOO_BIG   (IP_STATUS_BASE + 17)
+#define IP_BAD_DESTINATION  (IP_STATUS_BASE + 18)
+#define IP_ADDR_DELETED (IP_STATUS_BASE + 19)
+#define IP_SPEC_MTU_CHANGE  (IP_STATUS_BASE + 20)
+#define IP_MTU_CHANGE   (IP_STATUS_BASE + 21)
+#define IP_UNLOAD   (IP_STATUS_BASE + 22)
+#define IP_GENERAL_FAILURE  (IP_STATUS_BASE + 50)
+#define MAX_IP_STATUS   IP_GENERAL_FAILURE
+#define IP_PENDING  (IP_STATUS_BASE + 255)
+/* IP header Flags values */
+#define IP_FLAG_DF  0x2
+/*  IP Option types */
+#define IP_OPT_EOL  0
+#define IP_OPT_NOP  1
+#define IP_OPT_SECURITY 0x82
+#define IP_OPT_LSRR 0x83
+#define IP_OPT_SSRR 0x89
+#define IP_OPT_RR   0x7
+#define IP_OPT_TS   0x44
+#define IP_OPT_SID  0x88
+#define IP_OPT_ROUTER_ALERT 0x94
+#define MAX_OPT_SIZE    40
+
 typedef unsigned long IPAddr, IPMask, IP_STATUS;
+typedef struct ip_option_information {
+  unsigned char Ttl;
+  unsigned char Tos;
+  unsigned char Flags;
+  unsigned char OptionsSize;
+  unsigned char* OptionsData;
+}IP_OPTION_INFORMATION, *PIP_OPTION_INFORMATION;
+typedef struct icmp_echo_reply {
+  IPAddr        Address;
+  unsigned long Status;
+  unsigned long RoundTripTime;
+  unsigned short    DataSize;
+  unsigned short    Reserved;
+  void* Data;
+  struct ip_option_information   Options;
+} ICMP_ECHO_REPLY, *PICMP_ECHO_REPLY;;
 typedef struct {
   ULONG Index;
   WCHAR  Name[MAX_ADAPTER_NAME];
diff --git a/winsup/w32api/include/mswsock.h b/winsup/w32api/include/mswsock.h
new file mode 100644
index 000000000..d48c7443d
--- /dev/null
+++ b/winsup/w32api/include/mswsock.h
@@ -0,0 +1,59 @@
+/*
+ * mswsock.h
+ * MS-specific extensions to Windows Sockets 1.1, exported from mswsock.dll.
+ * These functions are N/A on Windows9x.
+ *
+ * This file is part of a free library for the Win32 API.
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ */
+         
+#ifndef _MSWSOCK_H
+#define _MSWSOCK_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SO_CONNDATA	0x7000
+#define SO_CONNOPT	0x7001
+#define SO_DISCDATA	0x7002
+#define SO_DISCOPT	0x7003
+#define SO_CONNDATALEN	0x7004
+#define SO_CONNOPTLEN	0x7005
+#define SO_DISCDATALEN	0x7006
+#define SO_DISCOPTLEN	0x7007
+#define SO_OPENTYPE	0x7008
+#define SO_SYNCHRONOUS_ALERT	0x10
+#define SO_SYNCHRONOUS_NONALERT	0x20
+#define SO_MAXDG	0x7009
+#define SO_MAXPATHDG	0x700A
+#define SO_UPDATE_ACCEPT_CONTEXT	0x700B
+#define SO_CONNECT_TIME	0x700C
+#define TCP_BSDURGENT	0x7000
+
+#define TF_DISCONNECT   1
+#define TF_REUSE_SOCKET 2
+#define TF_WRITE_BEHIND 4
+#define TF_USE_DEFAULT_WORKER   0
+#define TF_USE_SYSTEM_THREAD    16
+#define TF_USE_KERNEL_APC   32
+
+typedef struct _TRANSMIT_FILE_BUFFERS {
+	PVOID Head;
+	DWORD HeadLength;
+	PVOID Tail;
+	DWORD TailLength;
+} TRANSMIT_FILE_BUFFERS, *PTRANSMIT_FILE_BUFFERS, *LPTRANSMIT_FILE_BUFFERS;
+
+int PASCAL WSARecvEx(SOCKET,char*,int,int*);
+BOOL PASCAL TransmitFile(SOCKET,HANDLE,DWORD,DWORD,LPOVERLAPPED,LPTRANSMIT_FILE_BUFFERS,DWORD);
+BOOL PASCAL AcceptEx(SOCKET,SOCKET,PVOID,DWORD,DWORD,DWORD,LPDWORD,LPOVERLAPPED);
+VOID PASCAL GetAcceptExSockaddrs(PVOID,DWORD,DWORD,DWORD,struct sockaddr**, LPINT, struct sockaddr**, LPINT);
+
+#ifdef __cplusplus
+}
+#endif
+#endif  /*  _MSWSOCK_H */
+
diff --git a/winsup/w32api/include/winsock.h b/winsup/w32api/include/winsock.h
index 85917e388..61b6e35b1 100644
--- a/winsup/w32api/include/winsock.h
+++ b/winsup/w32api/include/winsock.h
@@ -139,7 +139,8 @@ struct  protoent {
 
 #define IPPROTO_IP	0
 #define IPPROTO_ICMP	1
-#define IPPROTO_GGP	2
+#define IPPROTO_IGMP 2
+#define IPPROTO_GGP 3
 #define IPPROTO_TCP	6
 #define IPPROTO_PUP	12
 #define IPPROTO_UDP	17
@@ -245,27 +246,18 @@ typedef WSADATA *LPWSADATA;
 #define SO_RCVTIMEO	0x1006
 #define SO_ERROR	0x1007
 #define SO_TYPE	0x1008
-#define SO_CONNDATA	0x7000
-#define SO_CONNOPT	0x7001
-#define SO_DISCDATA	0x7002
-#define SO_DISCOPT	0x7003
-#define SO_CONNDATALEN	0x7004
-#define SO_CONNOPTLEN	0x7005
-#define SO_DISCDATALEN	0x7006
-#define SO_DISCOPTLEN	0x7007
-#define SO_OPENTYPE	0x7008
-#define SO_SYNCHRONOUS_ALERT	0x10
-#define SO_SYNCHRONOUS_NONALERT	0x20
-#define SO_MAXDG	0x7009
-#define SO_MAXPATHDG	0x700A
-#define SO_UPDATE_ACCEPT_CONTEXT	0x700B
-#define SO_CONNECT_TIME	0x700C
 #endif
+/*
+ * Note that the next 5 IP defines are specific to WinSock 1.1 (wsock32.dll).
+ * They will cause errors or unexpected results if used with the
+ * (gs)etsockopts exported from the WinSock 2 lib, ws2_32.dll. Refer ws2tcpip.h.
+ */         
 #define IP_MULTICAST_IF	2
 #define IP_MULTICAST_TTL	3
 #define IP_MULTICAST_LOOP	4
 #define IP_ADD_MEMBERSHIP	5
 #define IP_DROP_MEMBERSHIP  6
+
 #define IP_DEFAULT_MULTICAST_TTL   1
 #define IP_DEFAULT_MULTICAST_LOOP  1
 #define IP_MAX_MEMBERSHIPS	 20
@@ -281,7 +273,6 @@ struct ip_mreq {
 #define SOCK_RDM	4
 #define SOCK_SEQPACKET	5
 #define TCP_NODELAY	0x0001
-#define TCP_BSDURGENT	0x7000
 #define AF_UNSPEC	0
 #define AF_UNIX	1
 #define AF_INET	2
@@ -463,16 +454,6 @@ HANDLE PASCAL WSAAsyncGetHostByName(HWND,u_int,const char*,char*,int);
 HANDLE PASCAL WSAAsyncGetHostByAddr(HWND,u_int,const char*,int,int,char*,int);
 int PASCAL WSACancelAsyncRequest(HANDLE);
 int PASCAL WSAAsyncSelect(SOCKET,HWND,u_int,long);
-int PASCAL WSARecvEx(SOCKET,char*,int,int*);
-typedef struct _TRANSMIT_FILE_BUFFERS {
-	PVOID Head;
-	DWORD HeadLength;
-	PVOID Tail;
-	DWORD TailLength;
-} TRANSMIT_FILE_BUFFERS, *PTRANSMIT_FILE_BUFFERS, *LPTRANSMIT_FILE_BUFFERS;
-BOOL PASCAL TransmitFile(SOCKET,HANDLE,DWORD,DWORD,LPOVERLAPPED,LPTRANSMIT_FILE_BUFFERS,DWORD);
-BOOL PASCAL AcceptEx(SOCKET,SOCKET,PVOID,DWORD,DWORD,DWORD,LPDWORD,LPOVERLAPPED);
-VOID PASCAL GetAcceptExSockaddrs(PVOID,DWORD,DWORD,DWORD,struct sockaddr**, LPINT, struct sockaddr**, LPINT);
 #ifndef __INSIDE_CYGWIN__
 u_long PASCAL htonl(u_long);
 u_long PASCAL ntohl(u_long);
@@ -520,4 +501,19 @@ typedef struct timeval *LPTIMEVAL;
 #ifdef __cplusplus
 }
 #endif
+/*
+ * Recent MSDN docs indicate that the MS-specific extensions exported from
+ * mswsock.dll (AcceptEx, TransmitFile. WSARecEx and GetAcceptExSockaddrs) are
+ * declared in mswsock.h. These extensions are not supported on W9x or WinCE.
+ * However, code using WinSock 1.1 API may expect the declarations and
+ * associated defines to be in this header. Thus we include mswsock.h here.
+ *
+ * When linking against the WinSock 1.1 lib, wsock32.dll, the mswsock functions
+ * are automatically routed to mswsock.dll (on platforms with support).
+ * The WinSock 2 lib, ws2_32.dll, does not contain any references to
+ * the mswsock extensions. 
+ */
+
+#include <mswsock.h>
+
 #endif
diff --git a/winsup/w32api/include/winsock2.h b/winsup/w32api/include/winsock2.h
index 180b43cb3..da7ff89d8 100644
--- a/winsup/w32api/include/winsock2.h
+++ b/winsup/w32api/include/winsock2.h
@@ -10,27 +10,524 @@
   Portions Copyright (c) 1993 by Digital Equipment Corporation.
  */
 
-#ifndef _WINSOCK2_H
+#if !(defined _WINSOCK2_H || defined _WINSOCK_H)
 #define _WINSOCK2_H
+#define _WINSOCK_H /* to prevent later inclusion of winsock.h */
+#define _GNU_H_WINDOWS32_SOCKETS
 
-/* Macros that are also defined in winsock.h, and need to be overridden.
-   These will go away once we have a completely standalone winsock2.h. */
-#ifdef FD_SET
-#define _FD_SET_DEFINED
-#endif
-#include <winsock.h>
+#include <windows.h>
 
-#ifndef _NSPAPI_H
-#include <nspapi.h>
-#endif
 #ifndef _WTYPES_H
-#include <wtypes.h>
+#include <wtypes.h> /* for BLOB */
 #endif
 
 #ifdef __cplusplus
 extern "C" {
 #endif
+/*   Names common to Winsock1.1 and Winsock2  */
+#if !defined ( _BSDTYPES_DEFINED ) && !defined ( _SYS_TYPES_H  )
+/* also defined in gmon.h and in cygwin's sys/types */
+typedef unsigned char	u_char;
+typedef unsigned short	u_short;
+typedef unsigned int	u_int;
+typedef unsigned long	u_long;
+#define _BSDTYPES_DEFINED
+#endif /* ndef _BSDTYPES_  _SYS_TYPES_H */
+typedef u_int	SOCKET;
+#ifndef FD_SETSIZE
+#define FD_SETSIZE	64
+#endif
+
+/* shutdown() how types */
+#define SD_RECEIVE      0x00
+#define SD_SEND         0x01
+#define SD_BOTH         0x02
+
+#ifndef _SYS_TYPES_H
+/* fd_set may have been defined by the newlib <sys/types.h>.  */
+#ifdef fd_set
+#undef fd_set
+#endif
+typedef struct fd_set {
+	u_int   fd_count;
+	SOCKET  fd_array[FD_SETSIZE];
+} fd_set;
+int PASCAL __WSAFDIsSet(SOCKET,fd_set*);
+#ifndef FD_CLR
+#define FD_CLR(fd,set) do { u_int __i;\
+for (__i = 0; __i < ((fd_set *)(set))->fd_count ; __i++) {\
+	if (((fd_set *)(set))->fd_array[__i] == (fd)) {\
+	while (__i < ((fd_set *)(set))->fd_count-1) {\
+		((fd_set*)(set))->fd_array[__i] = ((fd_set*)(set))->fd_array[__i+1];\
+		__i++;\
+	}\
+	((fd_set*)(set))->fd_count--;\
+	break;\
+	}\
+}\
+} while (0)
+#endif
+#ifndef FD_SET
+/* this differs from the define in winsock.h */
+#define FD_SET(fd, set) do { u_int __i;\
+for (__i = 0; __i < ((fd_set *)(set))->fd_count ; __i++) {\
+	if (((fd_set *)(set))->fd_array[__i] == (fd)) {\
+		break;\
+	}\
+}\
+if (__i == ((fd_set *)(set))->fd_count) {\
+	if (((fd_set *)(set))->fd_count < FD_SETSIZE) {\
+		((fd_set *)(set))->fd_array[__i] = (fd);\
+		((fd_set *)(set))->fd_count++;\
+	}\
+}\
+} while(0)
+#endif
+#ifndef FD_ZERO
+#define FD_ZERO(set) (((fd_set *)(set))->fd_count=0)
+#endif
+#ifndef FD_ISSET
+#define FD_ISSET(fd, set) __WSAFDIsSet((SOCKET)(fd), (fd_set *)(set))
+#endif
+#endif /* ndef _SYS_TYPES_H */
+#ifndef __INSIDE_CYGWIN__
+struct timeval {
+	long    tv_sec;
+	long    tv_usec;
+};
+struct  hostent {
+	char	*h_name;
+	char	**h_aliases;
+	short	h_addrtype;
+	short	h_length;
+	char	**h_addr_list;
+#define h_addr h_addr_list[0]
+};
+struct linger {
+	u_short l_onoff;
+	u_short l_linger;
+};
+#endif /* ndef __INSIDE_CYGWIN__ */
+#define timerisset(tvp)	 ((tvp)->tv_sec || (tvp)->tv_usec)
+#define timercmp(tvp, uvp, cmp) \
+	(((tvp)->tv_sec != (uvp)->tv_sec) ? \
+	((tvp)->tv_sec cmp (uvp)->tv_sec) : \
+	((tvp)->tv_usec cmp (uvp)->tv_usec))
+#define timerclear(tvp)	 (tvp)->tv_sec = (tvp)->tv_usec = 0
+#define IOCPARM_MASK	0x7f
+#define IOC_VOID	0x20000000
+#define IOC_OUT	0x40000000
+#define IOC_IN	0x80000000
+#define IOC_INOUT	(IOC_IN|IOC_OUT)
+
+#ifndef __INSIDE_CYGWIN__
+#define _IO(x,y)	(IOC_VOID|((x)<<8)|(y))
+#define _IOR(x,y,t)	(IOC_OUT|(((long)sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))
+#define _IOW(x,y,t)	(IOC_IN|(((long)sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))
+#define FIONBIO	_IOW('f', 126, u_long)
+#endif /* ndef __INSIDE_CYGWIN__ */
 
+#define FIONREAD	_IOR('f', 127, u_long)
+#define FIOASYNC	_IOW('f', 125, u_long)
+#define SIOCSHIWAT	_IOW('s',  0, u_long)
+#define SIOCGHIWAT	_IOR('s',  1, u_long)
+#define SIOCSLOWAT	_IOW('s',  2, u_long)
+#define SIOCGLOWAT	_IOR('s',  3, u_long)
+#define SIOCATMARK	_IOR('s',  7, u_long)
+
+#ifndef __INSIDE_CYGWIN__
+struct netent {
+	char	* n_name;
+	char	**n_aliases;
+	short	n_addrtype;
+	u_long n_net;
+};
+struct  servent {
+	char	*s_name;
+	char	**s_aliases;
+	short	s_port;
+	char	*s_proto;
+};
+struct  protoent {
+	char	*p_name;
+	char	**p_aliases;
+	short	p_proto;
+};
+#endif /* __INSIDE_CYGWIN__ */
+
+#define IPPROTO_IP	0
+#define IPPROTO_ICMP 1
+#define IPPROTO_IGMP 2
+#define IPPROTO_GGP 3
+#define IPPROTO_TCP	6
+#define IPPROTO_PUP	12
+#define IPPROTO_UDP	17
+#define IPPROTO_IDP	22
+#define IPPROTO_ND	77
+#define IPPROTO_RAW	255
+#define IPPROTO_MAX	256
+#define IPPORT_ECHO	7
+#define IPPORT_DISCARD	9
+#define IPPORT_SYSTAT	11
+#define IPPORT_DAYTIME  13
+#define IPPORT_NETSTAT  15
+#define IPPORT_FTP      21
+#define IPPORT_TELNET   23
+#define IPPORT_SMTP     25
+#define IPPORT_TIMESERVER 37
+#define IPPORT_NAMESERVER 42
+#define IPPORT_WHOIS	43
+#define IPPORT_MTP	57
+#define IPPORT_TFTP	69
+#define IPPORT_RJE	77
+#define IPPORT_FINGER	79
+#define IPPORT_TTYLINK	87
+#define IPPORT_SUPDUP	95
+#define IPPORT_EXECSERVER	512
+#define IPPORT_LOGINSERVER	513
+#define IPPORT_CMDSERVER	514
+#define IPPORT_EFSSERVER	520
+#define IPPORT_BIFFUDP	512
+#define IPPORT_WHOSERVER	513
+#define IPPORT_ROUTESERVER	520
+#define IPPORT_RESERVED	1024
+#define IMPLINK_IP	155
+#define IMPLINK_LOWEXPER	156
+#define IMPLINK_HIGHEXPER       158
+struct in_addr {
+	union {
+		struct { u_char s_b1,s_b2,s_b3,s_b4; } S_un_b;
+		struct { u_short s_w1,s_w2; } S_un_w;
+		u_long S_addr;
+	} S_un;
+#define s_addr  S_un.S_addr
+#define s_host  S_un.S_un_b.s_b2
+#define s_net   S_un.S_un_b.s_b1
+#define s_imp   S_un.S_un_w.s_w2
+#define s_impno S_un.S_un_b.s_b4
+#define s_lh    S_un.S_un_b.s_b3
+};
+#define IN_CLASSA(i)	((long)(i)&0x80000000)
+#define IN_CLASSA_NET	0xff000000
+#define IN_CLASSA_NSHIFT	24
+#define IN_CLASSA_HOST	0x00ffffff
+#define IN_CLASSA_MAX	128
+#define IN_CLASSB(i)	(((long)(i)&0xc0000000)==0x80000000)
+#define IN_CLASSB_NET	   0xffff0000
+#define IN_CLASSB_NSHIFT	16
+#define IN_CLASSB_HOST	  0x0000ffff
+#define IN_CLASSB_MAX	   65536
+#define IN_CLASSC(i)	(((long)(i)&0xe0000000)==0xc0000000)
+#define IN_CLASSC_NET	   0xffffff00
+#define IN_CLASSC_NSHIFT	8
+#define IN_CLASSC_HOST	  0xff
+#define INADDR_ANY	      (u_long)0
+#define INADDR_LOOPBACK	 0x7f000001
+#define INADDR_BROADCAST	(u_long)0xffffffff
+#define INADDR_NONE	0xffffffff
+struct sockaddr_in {
+	short	sin_family;
+	u_short	sin_port;
+	struct	in_addr sin_addr;
+	char	sin_zero[8];
+};
+#define WSADESCRIPTION_LEN	256
+#define WSASYS_STATUS_LEN	128
+typedef struct WSAData {
+	WORD	wVersion;
+	WORD	wHighVersion;
+	char	szDescription[WSADESCRIPTION_LEN+1];
+	char	szSystemStatus[WSASYS_STATUS_LEN+1];
+	unsigned short	iMaxSockets;
+	unsigned short	iMaxUdpDg;
+	char * 	lpVendorInfo;
+} WSADATA;
+typedef WSADATA *LPWSADATA;
+
+#ifndef __INSIDE_CYGWIN__
+#define IP_OPTIONS	1
+#define SO_DEBUG	1
+#define SO_ACCEPTCONN	2
+#define SO_REUSEADDR	4
+#define SO_KEEPALIVE	8
+#define SO_DONTROUTE	16
+#define SO_BROADCAST	32
+#define SO_USELOOPBACK	64
+#define SO_LINGER	128
+#define SO_OOBINLINE	256
+#define SO_DONTLINGER	(u_int)(~SO_LINGER)
+#define SO_SNDBUF	0x1001
+#define SO_RCVBUF	0x1002
+#define SO_SNDLOWAT	0x1003
+#define SO_RCVLOWAT	0x1004
+#define SO_SNDTIMEO	0x1005
+#define SO_RCVTIMEO	0x1006
+#define SO_ERROR	0x1007
+#define SO_TYPE	0x1008
+#endif
+
+#define INVALID_SOCKET (SOCKET)(~0)
+#define SOCKET_ERROR	(-1)
+#define SOCK_STREAM	1
+#define SOCK_DGRAM	2
+#define SOCK_RAW	3
+#define SOCK_RDM	4
+#define SOCK_SEQPACKET	5
+#define TCP_NODELAY	0x0001
+#define AF_UNSPEC	0
+#define AF_UNIX	1
+#define AF_INET	2
+#define AF_IMPLINK	3
+#define AF_PUP	4
+#define AF_CHAOS	5
+#define AF_IPX	6
+#define AF_NS	6
+#define AF_ISO	7
+#define AF_OSI	AF_ISO
+#define AF_ECMA	8
+#define AF_DATAKIT	9
+#define AF_CCITT	10
+#define AF_SNA	11
+#define AF_DECnet	12
+#define AF_DLI	13
+#define AF_LAT	14
+#define AF_HYLINK	15
+#define AF_APPLETALK	16
+#define AF_NETBIOS	17
+#define AF_VOICEVIEW	18
+#define	AF_FIREFOX	19
+#define	AF_UNKNOWN1	20
+#define	AF_BAN	21
+#define AF_ATM	22
+#define AF_INET6	23
+#define AF_CLUSTER  24
+#define AF_12844    25
+#define AF_IRDA     26
+#define AF_NETDES   28                     
+#ifndef __INSIDE_CYGWIN__
+#define AF_MAX	29
+struct sockaddr {
+	u_short sa_family;
+	char	sa_data[14];
+};
+#endif /* ndef __INSIDE_CYGWIN__ */
+
+struct sockproto {
+	u_short sp_family;
+	u_short sp_protocol;
+};
+#define PF_UNSPEC	AF_UNSPEC
+#define PF_UNIX	AF_UNIX
+#define PF_INET	AF_INET
+#define PF_IMPLINK	AF_IMPLINK
+#define PF_PUP	AF_PUP
+#define PF_CHAOS	AF_CHAOS
+#define PF_NS	AF_NS
+#define PF_IPX	AF_IPX
+#define PF_ISO	AF_ISO
+#define PF_OSI	AF_OSI
+#define PF_ECMA	AF_ECMA
+#define PF_DATAKIT	AF_DATAKIT
+#define PF_CCITT	AF_CCITT
+#define PF_SNA	AF_SNA
+#define PF_DECnet	AF_DECnet
+#define PF_DLI	AF_DLI
+#define PF_LAT	AF_LAT
+#define PF_HYLINK	AF_HYLINK
+#define PF_APPLETALK	AF_APPLETALK
+#define PF_VOICEVIEW	AF_VOICEVIEW
+#define PF_FIREFOX	AF_FIREFOX
+#define PF_UNKNOWN1	AF_UNKNOWN1
+#define PF_BAN	AF_BAN
+#define PF_ATM	AF_ATM
+#define PF_INET6	AF_INET6
+#define PF_MAX	AF_MAX
+#define SOL_SOCKET	0xffff
+#define SOMAXCONN	0x7fffffff /* (5) in WinSock1.1 */
+#ifndef __INSIDE_CYGWIN__
+#define MSG_OOB	1
+#define MSG_PEEK	2
+#define MSG_DONTROUTE	4
+#endif  /* ndef __INSIDE_CYGWIN__ */
+#define MSG_MAXIOVLEN	16
+#define MSG_PARTIAL	0x8000
+#define MAXGETHOSTSTRUCT	1024
+
+#define FD_READ_BIT      0
+#define FD_READ          (1 << FD_READ_BIT)  
+#define FD_WRITE_BIT     1
+#define FD_WRITE         (1 << FD_WRITE_BIT)
+#define FD_OOB_BIT       2
+#define FD_OOB           (1 << FD_OOB_BIT)
+#define FD_ACCEPT_BIT    3
+#define FD_ACCEPT        (1 << FD_ACCEPT_BIT)
+#define FD_CONNECT_BIT   4
+#define FD_CONNECT       (1 << FD_CONNECT_BIT)
+#define FD_CLOSE_BIT     5
+#define FD_CLOSE         (1 << FD_CLOSE_BIT)
+/* winsock1.1 defines stop at FD_CLOSE (32) */
+#define FD_QOS_BIT       6
+#define FD_QOS           (1 << FD_QOS_BIT)
+#define FD_GROUP_QOS_BIT 7
+#define FD_GROUP_QOS     (1 << FD_GROUP_QOS_BIT)
+#define FD_ROUTING_INTERFACE_CHANGE_BIT 8
+#define FD_ROUTING_INTERFACE_CHANGE     (1 << FD_ROUTING_INTERFACE_CHANGE_BIT)
+#define FD_ADDRESS_LIST_CHANGE_BIT 9
+#define FD_ADDRESS_LIST_CHANGE     (1 << FD_ADDRESS_LIST_CHANGE_BIT)
+#define FD_MAX_EVENTS    10
+#define FD_ALL_EVENTS    ((1 << FD_MAX_EVENTS) - 1)
+
+#define WSABASEERR	10000
+#define WSAEINTR	(WSABASEERR+4)
+#define WSAEBADF	(WSABASEERR+9)
+#define WSAEACCES	(WSABASEERR+13)
+#define WSAEFAULT	(WSABASEERR+14)
+#define WSAEINVAL	(WSABASEERR+22)
+#define WSAEMFILE	(WSABASEERR+24)
+#define WSAEWOULDBLOCK	(WSABASEERR+35)
+#define WSAEINPROGRESS	(WSABASEERR+36) /* deprecated on WinSock2 */ 
+#define WSAEALREADY	(WSABASEERR+37)
+#define WSAENOTSOCK	(WSABASEERR+38)
+#define WSAEDESTADDRREQ	(WSABASEERR+39)
+#define WSAEMSGSIZE	(WSABASEERR+40)
+#define WSAEPROTOTYPE	(WSABASEERR+41)
+#define WSAENOPROTOOPT	(WSABASEERR+42)
+#define WSAEPROTONOSUPPORT	(WSABASEERR+43)
+#define WSAESOCKTNOSUPPORT	(WSABASEERR+44)
+#define WSAEOPNOTSUPP	(WSABASEERR+45)
+#define WSAEPFNOSUPPORT	(WSABASEERR+46)
+#define WSAEAFNOSUPPORT	(WSABASEERR+47)
+#define WSAEADDRINUSE	(WSABASEERR+48)
+#define WSAEADDRNOTAVAIL	(WSABASEERR+49)
+#define WSAENETDOWN	(WSABASEERR+50)
+#define WSAENETUNREACH	(WSABASEERR+51)
+#define WSAENETRESET	(WSABASEERR+52)
+#define WSAECONNABORTED	(WSABASEERR+53)
+#define WSAECONNRESET	(WSABASEERR+54)
+#define WSAENOBUFS	(WSABASEERR+55)
+#define WSAEISCONN	(WSABASEERR+56)
+#define WSAENOTCONN	(WSABASEERR+57)
+#define WSAESHUTDOWN	(WSABASEERR+58)
+#define WSAETOOMANYREFS	(WSABASEERR+59)
+#define WSAETIMEDOUT	(WSABASEERR+60)
+#define WSAECONNREFUSED	(WSABASEERR+61)
+#define WSAELOOP	(WSABASEERR+62)
+#define WSAENAMETOOLONG	(WSABASEERR+63)
+#define WSAEHOSTDOWN	(WSABASEERR+64)
+#define WSAEHOSTUNREACH	(WSABASEERR+65)
+#define WSAENOTEMPTY	(WSABASEERR+66)
+#define WSAEPROCLIM	(WSABASEERR+67)
+#define WSAEUSERS	(WSABASEERR+68)
+#define WSAEDQUOT	(WSABASEERR+69)
+#define WSAESTALE	(WSABASEERR+70)
+#define WSAEREMOTE	(WSABASEERR+71)
+#define WSAEDISCON	(WSABASEERR+101)
+#define WSASYSNOTREADY	(WSABASEERR+91)
+#define WSAVERNOTSUPPORTED	(WSABASEERR+92)
+#define WSANOTINITIALISED	(WSABASEERR+93)
+#define WSAHOST_NOT_FOUND	(WSABASEERR+1001)
+#define WSATRY_AGAIN	(WSABASEERR+1002)
+#define WSANO_RECOVERY	(WSABASEERR+1003)
+#define WSANO_DATA	(WSABASEERR+1004)
+#define WSANO_ADDRESS	WSANO_DATA
+#ifndef __INSIDE_CYGWIN__
+#define h_errno WSAGetLastError()
+#define HOST_NOT_FOUND	WSAHOST_NOT_FOUND
+#define TRY_AGAIN	WSATRY_AGAIN
+#define NO_RECOVERY	WSANO_RECOVERY
+#define NO_DATA	WSANO_DATA
+#define NO_ADDRESS	WSANO_ADDRESS
+#endif
+SOCKET PASCAL accept(SOCKET,struct sockaddr*,int*);
+int PASCAL bind(SOCKET,const struct sockaddr*,int);
+int PASCAL closesocket(SOCKET);
+int PASCAL connect(SOCKET,const struct sockaddr*,int);
+int PASCAL ioctlsocket(SOCKET,long,u_long *);
+int PASCAL getpeername(SOCKET,struct sockaddr*,int*);
+int PASCAL getsockname(SOCKET,struct sockaddr*,int*);
+int PASCAL getsockopt(SOCKET,int,int,char*,int*);
+unsigned long PASCAL inet_addr(const char*);
+PASCAL char *inet_ntoa(struct in_addr);
+int PASCAL listen(SOCKET,int);
+int PASCAL recv(SOCKET,char*,int,int);
+int PASCAL recvfrom(SOCKET,char*,int,int,struct sockaddr*,int*);
+int PASCAL send(SOCKET,const char*,int,int);
+int PASCAL sendto(SOCKET,const char*,int,int,const struct sockaddr*,int);
+int PASCAL setsockopt(SOCKET,int,int,const char*,int);
+int PASCAL shutdown(SOCKET,int);
+SOCKET PASCAL socket(int,int,int);
+PASCAL struct hostent *gethostbyaddr(const char*,int,int);
+PASCAL struct hostent *gethostbyname(const char*);
+PASCAL struct servent *getservbyport(int,const char*);
+PASCAL struct servent *getservbyname(const char*,const char*);
+PASCAL struct protoent *getprotobynumber(int);
+PASCAL struct protoent *getprotobyname(const char*);
+int PASCAL WSAStartup(WORD,LPWSADATA);
+int PASCAL WSACleanup(void);
+void PASCAL WSASetLastError(int);
+int PASCAL WSAGetLastError(void);
+/*
+ * Pesudo-blocking functions N/A in ws2_32.dll (use threads instead)
+ */
+#if 0
+BOOL PASCAL WSAIsBlocking(void);
+int PASCAL WSAUnhookBlockingHook(void);
+FARPROC PASCAL WSASetBlockingHook(FARPROC);
+int PASCAL WSACancelBlockingCall(void);
+#endif
+HANDLE PASCAL WSAAsyncGetServByName(HWND,u_int,const char*,const char*,char*,int);
+HANDLE PASCAL WSAAsyncGetServByPort(HWND,u_int,int,const char*,char*,int);
+HANDLE PASCAL WSAAsyncGetProtoByName(HWND,u_int,const char*,char*,int);
+HANDLE PASCAL WSAAsyncGetProtoByNumber(HWND,u_int,int,char*,int);
+HANDLE PASCAL WSAAsyncGetHostByName(HWND,u_int,const char*,char*,int);
+HANDLE PASCAL WSAAsyncGetHostByAddr(HWND,u_int,const char*,int,int,char*,int);
+int PASCAL WSACancelAsyncRequest(HANDLE);
+int PASCAL WSAAsyncSelect(SOCKET,HWND,u_int,long);
+#ifndef __INSIDE_CYGWIN__
+u_long PASCAL htonl(u_long);
+u_long PASCAL ntohl(u_long);
+u_short PASCAL htons(u_short);
+u_short PASCAL ntohs(u_short);
+int PASCAL select(int nfds,fd_set*,fd_set*,fd_set*,const struct timeval*);
+int PASCAL gethostname(char*,int);
+#endif /* ndef __INSIDE_CYGWIN__ */
+
+#define WSAMAKEASYNCREPLY(b,e)	MAKELONG(b,e)
+#define WSAMAKESELECTREPLY(e,error)	MAKELONG(e,error)
+#define WSAGETASYNCBUFLEN(l)	LOWORD(l)
+#define WSAGETASYNCERROR(l)	HIWORD(l)
+#define WSAGETSELECTEVENT(l)	LOWORD(l)
+#define WSAGETSELECTERROR(l)	HIWORD(l)
+
+typedef struct sockaddr SOCKADDR;
+typedef struct sockaddr *PSOCKADDR;
+typedef struct sockaddr *LPSOCKADDR;
+typedef struct sockaddr_in SOCKADDR_IN;
+typedef struct sockaddr_in *PSOCKADDR_IN;
+typedef struct sockaddr_in *LPSOCKADDR_IN;
+typedef struct linger LINGER;
+typedef struct linger *PLINGER;
+typedef struct linger *LPLINGER;
+typedef struct in_addr IN_ADDR;
+typedef struct in_addr *PIN_ADDR;
+typedef struct in_addr *LPIN_ADDR;
+typedef struct fd_set FD_SET;
+typedef struct fd_set *PFD_SET;
+typedef struct fd_set *LPFD_SET;
+typedef struct hostent HOSTENT;
+typedef struct hostent *PHOSTENT;
+typedef struct hostent *LPHOSTENT;
+typedef struct servent SERVENT;
+typedef struct servent *PSERVENT;
+typedef struct servent *LPSERVENT;
+typedef struct protoent PROTOENT;
+typedef struct protoent *PPROTOENT;
+typedef struct protoent *LPPROTOENT;
+typedef struct timeval TIMEVAL;
+typedef struct timeval *PTIMEVAL;
+typedef struct timeval *LPTIMEVAL;
+
+/* winsock2 additions */
 #define ADDR_ANY	INADDR_ANY
 
 #define	IN_CLASSD(i)	(((long)(i) & 0xf0000000) == 0xe0000000)
@@ -44,9 +541,6 @@ extern "C" {
 #define SO_DONTLINGER	(u_int)(~SO_LINGER)
 #define SO_GROUP_ID	0x2001
 #define SO_GROUP_PRIORITY	0x2002
-/* FIXME/TODO: need this because we also include winsock.h. */
-#undef	SOMAXCONN
-#define SOMAXCONN	0x7fffffff
 #define SO_MAX_MSG_SIZE	0x2003
 #define SO_PROTOCOL_INFOA	0x2004
 #define SO_PROTOCOL_INFOW	0x2005
@@ -57,39 +551,10 @@ extern "C" {
 #endif
 #define PVD_CONFIG        0x3001
 
-#define FD_READ_BIT     0
-#define FD_WRITE_BIT    1
-#define FD_OOB_BIT      2
-#define FD_ACCEPT_BIT   3
-#define FD_CONNECT_BIT  4
-#define FD_CLOSE_BIT    5
-#define FD_QOS_BIT	6
-#define FD_GROUP_QOS_BIT	7
-#define FD_MAX_EVENTS	8
-#define	FD_ALL_EVENTS	(255)
-
-#if !defined(_FD_SET_DEFINED)
-#undef FD_SET
-#define FD_SET(fd, set) do { u_int __i;\
-for (__i = 0; __i < ((fd_set *)(set))->fd_count ; __i++) {\
-	if (((fd_set *)(set))->fd_array[__i] == (fd)) {\
-		break;\
-	}\
-}\
-if (__i == ((fd_set *)(set))->fd_count) {\
-	if (((fd_set *)(set))->fd_count < FD_SETSIZE) {\
-		((fd_set *)(set))->fd_array[__i] = (fd);\
-		((fd_set *)(set))->fd_count++;\
-	}\
-}\
-} while(0)
-#else
-#undef _FD_SET_DEFINED
-#endif
-
 #define	MSG_INTERRUPT	0x10
 #define	MSG_MAXIOVLEN	16
 
+/* WinSock2 specific error codes */
 #define	WSAEDISCON	(WSABASEERR+101)
 #define	WSAENOMORE	(WSABASEERR+102)
 #define	WSAECANCELLED	(WSABASEERR+103)
@@ -103,6 +568,36 @@ if (__i == ((fd_set *)(set))->fd_count) {\
 #define	WSA_E_CANCELLED	(WSABASEERR+111)
 #define	WSAEREFUSED	(WSABASEERR+112)
  
+/* WS QualityofService errors */
+#define  WSA_QOS_RECEIVERS  (WSABASEERR + 1005)
+#define  WSA_QOS_SENDERS    (WSABASEERR + 1006)
+#define  WSA_QOS_NO_SENDERS (WSABASEERR + 1007)
+#define  WSA_QOS_NO_RECEIVERS   (WSABASEERR + 1008)
+#define  WSA_QOS_REQUEST_CONFIRMED  (WSABASEERR + 1009)
+#define  WSA_QOS_ADMISSION_FAILURE  (WSABASEERR + 1010)
+#define  WSA_QOS_POLICY_FAILURE (WSABASEERR + 1011)
+#define  WSA_QOS_BAD_STYLE  (WSABASEERR + 1012)
+#define  WSA_QOS_BAD_OBJECT (WSABASEERR + 1013)
+#define  WSA_QOS_TRAFFIC_CTRL_ERROR (WSABASEERR + 1014)
+#define  WSA_QOS_GENERIC_ERROR  (WSABASEERR + 1015)
+#define  WSA_QOS_ESERVICETYPE   (WSABASEERR + 1016)
+#define  WSA_QOS_EFLOWSPEC	(WSABASEERR + 1017)
+#define  WSA_QOS_EPROVSPECBUF    (WSABASEERR + 1018)
+#define  WSA_QOS_EFILTERSTYLE   (WSABASEERR + 1019)
+#define  WSA_QOS_EFILTERTYPE    (WSABASEERR + 1020)
+#define  WSA_QOS_EFILTERCOUNT   (WSABASEERR + 1021)
+#define  WSA_QOS_EOBJLENGTH (WSABASEERR + 1022)
+#define  WSA_QOS_EFLOWCOUNT (WSABASEERR + 1023)
+#define  WSA_QOS_EUNKOWNPSOBJ   (WSABASEERR + 1024)
+#define  WSA_QOS_EPOLICYOBJ (WSABASEERR + 1025)
+#define  WSA_QOS_EFLOWDESC  (WSABASEERR + 1026)
+#define  WSA_QOS_EPSFLOWSPEC    (WSABASEERR + 1027)
+#define  WSA_QOS_EPSFILTERSPEC  (WSABASEERR + 1028)
+#define  WSA_QOS_ESDMODEOBJ (WSABASEERR + 1029)
+#define  WSA_QOS_ESHAPERATEOBJ  (WSABASEERR + 1030)
+#define  WSA_QOS_RESERVED_PETYPE    (WSABASEERR + 1031)
+
+ 
 #define	WSAAPI	WINAPI
 #define WSAEVENT	HANDLE
 #define	LPWSAEVENT	LPHANDLE
@@ -204,6 +699,12 @@ typedef struct _WSAVersion
 	WSAECOMPARATOR	ecHow;
 } WSAVERSION, *PWSAVERSION, *LPWSAVERSION;
 
+/*
+ * nspapi.h has definition of  LPCSADDR_INFO, needed in WSAQuery
+ * but itself needs LPSOCKADDR which is defined earlier in this file 
+*/
+#include <nspapi.h>
+
 typedef struct _WSAQuerySetA
 {
 	DWORD	dwSize;
@@ -456,6 +957,11 @@ typedef LPWSAPROTOCOL_INFOA LPWSAPROTOCOL_INFO;
 #define SIO_SET_QOS                   _WSAIOW(IOC_WS2,11)
 #define SIO_SET_GROUP_QOS             _WSAIOW(IOC_WS2,12)
 #define SIO_TRANSLATE_HANDLE          _WSAIORW(IOC_WS2,13)
+#define SIO_ROUTING_INTERFACE_QUERY   _WSAIORW(IOC_WS2,20)
+#define SIO_ROUTING_INTERFACE_CHANGE  _WSAIOW(IOC_WS2,21)
+#define SIO_ADDRESS_LIST_QUERY        _WSAIOR(IOC_WS2,22)
+#define SIO_ADDRESS_LIST_CHANGE       _WSAIO(IOC_WS2,23)
+#define SIO_QUERY_TARGET_PNP_HANDLE   _WSAIOR(IOC_WS2,24)
 #define TH_NETDEV	0x00000001
 #define TH_TAPI	0x00000002
 
diff --git a/winsup/w32api/include/ws2tcpip.h b/winsup/w32api/include/ws2tcpip.h
new file mode 100644
index 000000000..3add12a65
--- /dev/null
+++ b/winsup/w32api/include/ws2tcpip.h
@@ -0,0 +1,138 @@
+/*
+ *  ws2tcpip.h : TCP/IP specific extensions in Windows Sockets 2
+ *
+ * Portions Copyright (c) 1980, 1983, 1988, 1993
+ * The Regents of the University of California.  All rights reserved.
+ *
+ */
+
+#ifndef _WS2TCPIP_H
+#define _WS2TCPIP_H
+
+#include <winsock2.h>
+
+/* 
+ * The IP_* macros are also defined in winsock.h, but some values are different there.
+ * The values defined in winsock.h for 1.1 and used in wsock32.dll are consistent
+ * with the original values Steve Deering defined in his document "IP Multicast Extensions
+ * for 4.3BSD UNIX related systems (MULTICAST 1.2 Release)." However, these conflicted with
+ * the definitions for some IPPROTO_IP level socket options already assigned by BSD,
+ * so Berkeley changed all the values by adding 7.  WinSock2 (ws2_32.dll)  uses
+ * the BSD 4.4 compatible values defined here.
+ *
+ * See also: msdn kb article Q257460
+ * http://support.microsoft.com/support/kb/articles/Q257/4/60.asp
+ */
+
+/* This is also defined in winsock.h; value hasn't changed */
+#define	IP_OPTIONS  1
+
+#define	IP_HDRINCL  2
+/*
+ * These are also be defined in winsock.h,
+ * but values have changed for WinSock2 interface
+ */
+#define	IP_TOS  3   /* old (winsock 1.1) value 8 */
+#define	IP_TTL  4  /* old value 7 */
+#define	IP_MULTICAST_IF 	9 /* old value 2 */
+#define	IP_MULTICAST_TTL    10 /* old value 3 */
+#define	IP_MULTICAST_LOOP   11 /* old value 4 */
+#define	IP_ADD_MEMBERSHIP   12 /* old value 5 */
+#define	IP_DROP_MEMBERSHIP  13 /* old value 6 */
+#define IP_DONTFRAGMENT 14 /* old value 9 */
+
+#define IP_DEFAULT_MULTICAST_TTL 1 
+#define IP_DEFAULT_MULTICAST_LOOP 1 
+#define IP_MAX_MEMBERSHIPS 20 
+
+#define TCP_EXPEDITED_1122  2
+
+#define UDP_NOCHECKSUM	1
+
+#define IFF_UP  1
+#define IFF_BROADCAST   2
+#define IFF_LOOPBACK    4
+#define IFF_POINTTOPOINT    8
+#define IFF_MULTICAST   16
+
+#define SIO_GET_INTERFACE_LIST  _IOR('t', 127, u_long)	
+
+/*
+ *   ip_mreq also in winsock.h for WinSock1.1,
+ *   but online msdn docs say it is defined here for WinSock2.
+ */ 
+struct ip_mreq {
+	struct in_addr imr_multiaddr;
+	struct in_addr imr_interface;
+};
+
+typedef struct _INTERFACE_INFO {
+	u_long		iiFlags;
+    struct sockaddr iiAddress;
+	struct sockaddr iiBroadcastAddress;
+	struct sockaddr iiNetmask;
+} INTERFACE_INFO, *LPINTERFACE_INFO;
+
+
+/* ipv6 */ 
+
+/*
+ * According to online msdn documentation (12 Dec 2000), two separate implentations
+ * of ipv6 are available (1) the Microsoft IPv6 Technology Preview  (requires W2K SP1)
+ * and (2) the MS Research IPV6 implementation (requires NT4 or W2K).
+ * Neither are production level implementations.    
+ */
+
+#if 0
+/*
+ * The following is based on what online msdn PSDK docs say as at 5 Dec 2000
+ */
+struct in_addr6 /* sic */ { u_char s6_addr[16]; };
+typedef struct in_addr6 IN6_ADDR,  *PIN6_ADDR, *LPIN6_ADDR;
+
+typedef struct sockaddr_in6 {
+		short	sin6_family;
+		u_short sin6_port;
+		u_long	sin6_flowinfo;
+		struct in_addr6 sin6_addr;
+} SOCKADDR_IN6, *PSOCKADDR_IN6, *LPSOCKADDR_IN6;
+
+#elif 0
+/*
+ * In the FAQ section of Microsoft IPv6 Technology Preview for Windows 2000
+ * (dated 12 Dec 2000) it says that the Preview and the MS Research implemntation
+ * support RFC 2553, and in particular, uses the sockaddr_in6 structure defined
+ * in Section 3.3. That would look something like this:
+*/
+#include <stdint.h>
+struct in6_addr { /* this is the standard name */
+        union {
+                uint8_t   _u6_addr8[16];
+                uint16_t  _u6_addr16[8];
+                uint32_t  _u6_addr32[4];
+             /* uint64_t  _u6_addr64[2];*/ 
+        } _u6_addr;
+};
+typedef struct in6_addr IN6_ADDR,  *PIN6_ADDR, *LPIN6_ADDR;
+#define s6_addr   _u6_addr._u6_addr8
+
+struct sockaddr_in6 {
+    uint16_t sin6_family; /* AF_INET6 */
+	uint16_t sin6_port; /* transport layer port # */
+	uint32_t sin6_flowinfo; /* IPv6 traffic class & flow info */
+	struct in6_addr sin6_addr;  /* IPv6 address */
+    uint32_t sin6_scope_id;  /* set of interfaces for a scope */
+};
+typedef struct sockaddr_in6  SOCKADDR_IN6, *PSOCKADDR_IN6, *LPSOCKADDR_IN6;
+
+/*
+ * Watch this space.
+ * These may get moved out to ipv6 specific header(s). along with other
+ * standard structures and functions specified in RFC 2553.    
+ */
+#endif
+
+#endif	/* _WS2TCPIP_H */
+
+
+