winsock.h

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/*
  Definitions for winsock 1.1

  Portions Copyright (c) 1980, 1983, 1988, 1993
  The Regents of the University of California.  All rights reserved.

  Portions Copyright (c) 1993 by Digital Equipment Corporation.
 */

#pragma once

#define _WINSOCKAPI_

#ifndef _INC_WINDOWS
#include <windows.h>
#endif

#if defined(__LP64__) || (!defined(_M_AMD64) && defined(__WINESRC__))
#if !defined(__ROS_LONG64__)
#define __ROS_LONG64__
#endif
#endif

#define _GNU_H_WINDOWS32_SOCKETS

#ifdef __cplusplus
extern "C" {
#endif

#if !defined ( _BSDTYPES_DEFINED )

/* 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;

#ifndef __ROS_LONG64__
typedef unsigned long u_long;
#else
typedef unsigned int u_long;
#endif

#define _BSDTYPES_DEFINED

#endif /* !defined ( _BSDTYPES_DEFINED ) */

typedef UINT_PTR 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_FD_SET

/* fd_set may have be defined by the newlib <sys/types.h>
 * if __USE_W32_SOCKETS not defined.
 */
#ifdef fd_set
#undef fd_set
#endif
typedef struct fd_set {
  u_int fd_count;
  SOCKET fd_array[FD_SETSIZE];
} fd_set;

extern int PASCAL __WSAFDIsSet(SOCKET,fd_set FAR*);

#ifndef FD_CLR
#define FD_CLR(fd,set) do { u_int __i;\
for (__i = 0; __i < ((fd_set FAR*)(set))->fd_count ; __i++) {\
  if (((fd_set FAR*)(set))->fd_array[__i] == (fd)) {\
  while (__i < ((fd_set FAR*)(set))->fd_count-1) {\
    ((fd_set FAR*)(set))->fd_array[__i] = ((fd_set FAR*)(set))->fd_array[__i+1];\
    __i++;\
  }\
  ((fd_set FAR*)(set))->fd_count--;\
  break;\
  }\
}\
} while (0)
#endif /* FD_CLR */

#ifndef FD_SET
#define FD_SET(fd, set) do { \
  if (((fd_set FAR*)(set))->fd_count < FD_SETSIZE) \
  ((fd_set FAR*)(set))->fd_array[((fd_set FAR*)(set))->fd_count++]=(fd);\
}while (0)
#endif

#ifndef FD_ZERO
#define FD_ZERO(set) (((fd_set FAR*)(set))->fd_count=0)
#endif

#ifndef FD_ISSET
#define FD_ISSET(fd, set) __WSAFDIsSet((SOCKET)(fd), (fd_set FAR*)(set))
#endif



#elif !defined(USE_SYS_TYPES_FD_SET)
#warning "fd_set and associated macros have been defined in sys/types.  \
    This can cause runtime problems with W32 sockets"
#endif /* ndef _SYS_TYPES_FD_SET */

#if !(defined (__INSIDE_CYGWIN__) || defined (__INSIDE_MSYS__))

#ifndef _TIMEVAL_DEFINED /* also in sys/time.h */
#define _TIMEVAL_DEFINED

struct timeval {
  LONG tv_sec;
  LONG tv_usec;
};

#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

#endif /* _TIMEVAL_DEFINED */

#define h_addr h_addr_list[0]

struct hostent {
  char *h_name;
  char **h_aliases;
  short h_addrtype;
  short h_length;
  char **h_addr_list;
};

struct linger {
  u_short l_onoff;
  u_short l_linger;
};

#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)

struct netent {
  char * n_name;
  char **n_aliases;
  short n_addrtype;
  u_long n_net;
};

struct servent {
  char *s_name;
  char **s_aliases;
#ifdef _WIN64
  char *s_proto;
  short s_port;
#else
  short s_port;
  char *s_proto;
#endif
};

struct protoent {
  char *p_name;
  char **p_aliases;
  short p_proto;
};

#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

#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_MAXDG        0x7009
#define SO_MAXPATHDG    0x700A
#define SO_UPDATE_ACCEPT_CONTEXT 0x700B
#define SO_CONNECT_TIME 0x700C

#define SO_SYNCHRONOUS_ALERT    0x10
#define SO_SYNCHRONOUS_NONALERT 0x20

#define AF_MAX 24

struct sockaddr {
  u_short sa_family;
  char sa_data[14];
};

#define MSG_OOB                  1
#define MSG_PEEK                 2
#define MSG_DONTROUTE            4

#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_ADDRES WSANO_ADDRESS

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 /* ! (__INSIDE_CYGWIN__ || __INSIDE_MSYS__) */

#define IOCPARM_MASK             0x7f
#define IOC_VOID                 0x20000000
#define IOC_OUT                  0x40000000
#define IOC_IN                   0x80000000
#define IOC_INOUT                (IOC_IN|IOC_OUT)

#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)

#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

#include <inaddr.h>

#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

#define WSADESCRIPTION_LEN   256
#define WSASYS_STATUS_LEN    128

#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_TTL 7
#define IP_TOS 8
#define IP_DONTFRAGMENT 9

#define IP_DEFAULT_MULTICAST_TTL   1
#define IP_DEFAULT_MULTICAST_LOOP  1
#define IP_MAX_MEMBERSHIPS  20

#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 TCP_BSDURGENT   0x7000

#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 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 5

#define MSG_MAXIOVLEN 16
#define MSG_PARTIAL 0x8000
#define MAXGETHOSTSTRUCT 1024

#define FD_READ 1
#define FD_WRITE 2
#define FD_OOB 4
#define FD_ACCEPT 8
#define FD_CONNECT 16
#define FD_CLOSE 32

#ifndef WSABASEERR

#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)
#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 WSASYSNOTREADY (WSABASEERR+91)
#define WSAVERNOTSUPPORTED (WSABASEERR+92)
#define WSANOTINITIALISED (WSABASEERR+93)
#define WSAEDISCON (WSABASEERR+101)
#define WSAHOST_NOT_FOUND (WSABASEERR+1001)
#define WSATRY_AGAIN (WSABASEERR+1002)
#define WSANO_RECOVERY (WSABASEERR+1003)
#define WSANO_DATA (WSABASEERR+1004)
#define WSA_SECURE_HOST_NOT_FOUND (WSABASEERR+1032)
#define WSA_IPSEC_NAME_POLICY_ERROR (WSABASEERR+1033)

#endif /* !WSABASEERR */

#define WSANO_ADDRESS WSANO_DATA

#define TF_DISCONNECT       0x01
#define TF_REUSE_SOCKET     0x02
#define TF_WRITE_BEHIND     0x04

#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 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;

struct sockaddr_in {
  short sin_family;
  u_short sin_port;
  struct in_addr sin_addr;
  char sin_zero[8];
};

typedef struct WSAData {
  WORD wVersion;
  WORD wHighVersion;
#ifdef _WIN64
  unsigned short iMaxSockets;
  unsigned short iMaxUdpDg;
  char *lpVendorInfo;
  char szDescription[WSADESCRIPTION_LEN+1];
  char szSystemStatus[WSASYS_STATUS_LEN+1];
#else
  char szDescription[WSADESCRIPTION_LEN+1];
  char szSystemStatus[WSASYS_STATUS_LEN+1];
  unsigned short iMaxSockets;
  unsigned short iMaxUdpDg;
  char *lpVendorInfo;
#endif
} WSADATA, FAR *LPWSADATA;

struct ip_mreq {
  struct in_addr imr_multiaddr;
  struct in_addr imr_interface;
};

struct sockproto {
  u_short sp_family;
  u_short sp_protocol;
};

SOCKET
PASCAL FAR
accept(
  _In_ SOCKET s,
  _Out_writes_bytes_opt_(*addrlen) struct sockaddr FAR *addr,
  _Inout_opt_ int FAR *addrlen);

int
PASCAL FAR
bind(
  _In_ SOCKET s,
  _In_reads_bytes_(namelen) const struct sockaddr FAR *addr,
  _In_ int namelen);

int
PASCAL FAR
closesocket(
  _In_ SOCKET s);

int
PASCAL FAR
connect(
  _In_ SOCKET s,
  _In_reads_bytes_(namelen) const struct sockaddr FAR *name,
  _In_ int namelen);

int
PASCAL FAR
ioctlsocket(
  _In_ SOCKET s,
  _In_ long cmd,
  _Inout_ u_long FAR *argp);

int
PASCAL FAR
getpeername(
  _In_ SOCKET s,
  _Out_writes_bytes_to_(*namelen, *namelen) struct sockaddr FAR *name,
  _Inout_ int FAR *namelen);

int
PASCAL FAR
getsockname(
  _In_ SOCKET s,
  _Out_writes_bytes_to_(*namelen, *namelen) struct sockaddr FAR *name,
  _Inout_ int FAR *namelen);

int
PASCAL FAR
getsockopt(
  _In_ SOCKET s,
  _In_ int level,
  _In_ int optname,
  _Out_writes_bytes_(*optlen) char FAR *optval,
  _Inout_ int FAR *optlen);

u_long
PASCAL FAR
htonl(
  _In_ u_long hostlong);

u_short
PASCAL FAR
htons(
  _In_ u_short hostshort);

unsigned long
PASCAL FAR
inet_addr(
  _In_z_ const char FAR *cp);

char FAR
*PASCAL FAR
inet_ntoa(
  _In_ struct in_addr in);

int
PASCAL FAR
listen(
  _In_ SOCKET s,
  _In_ int backlog);

u_long
PASCAL FAR
ntohl(
  _In_ u_long netlong);

u_short
PASCAL FAR
ntohs(
  _In_ u_short netshort);

int
PASCAL FAR
recv(
  _In_ SOCKET s,
  _Out_writes_bytes_to_(len, return) __out_data_source(NETWORK) char FAR *buf,
  _In_ int len,
  _In_ int flags);

int
PASCAL FAR
recvfrom(
  _In_ SOCKET s,
  _Out_writes_bytes_to_(len, return) __out_data_source(NETWORK) char FAR *buf,
  _In_ int len,
  _In_ int flags,
  _Out_writes_bytes_to_opt_(*fromlen, *fromlen) struct sockaddr FAR *from,
  _Inout_opt_ int FAR * fromlen);

int
PASCAL FAR
select(
  _In_ int nfds,
  _Inout_opt_ fd_set FAR *readfds,
  _Inout_opt_ fd_set FAR *writefds,
  _Inout_opt_ fd_set FAR *exceptfds,
  _In_opt_ const struct timeval FAR *timeout);

int
PASCAL FAR
send(
  _In_ SOCKET s,
  _In_reads_bytes_(len) const char FAR *buf,
  _In_ int len,
  _In_ int flags);

int
PASCAL FAR
sendto(
  _In_ SOCKET s,
  _In_reads_bytes_(len) const char FAR *buf,
  _In_ int len,
  _In_ int flags,
  _In_reads_bytes_opt_(tolen) const struct sockaddr FAR *to,
  _In_ int tolen);

int
PASCAL FAR
setsockopt(
  _In_ SOCKET s,
  _In_ int level,
  _In_ int optname,
  _In_reads_bytes_opt_(optlen) const char FAR *optval,
  _In_ int optlen);

int
PASCAL FAR
shutdown(
  _In_ SOCKET s,
  _In_ int how);

SOCKET
PASCAL FAR
socket(
  _In_ int af,
  _In_ int type,
  _In_ int protocol);

struct hostent FAR
*PASCAL FAR
gethostbyaddr(
  _In_reads_bytes_(len) const char FAR *addr,
  _In_ int len,
  _In_ int type);

struct hostent FAR
*PASCAL FAR
gethostbyname(
  _In_z_ const char FAR *name);

int
PASCAL FAR
gethostname(
  _Out_writes_bytes_to_(namelen, return) char FAR *name,
  _In_ int namelen);

struct servent FAR
*PASCAL FAR
getservbyport(
  _In_ int port,
  _In_z_ const char FAR *proto);

struct servent FAR
*PASCAL FAR
getservbyname(
  _In_z_ const char FAR *name,
  _In_z_ const char FAR *proto);

struct protoent FAR
*PASCAL FAR
getprotobynumber(
  _In_ int number);

struct protoent FAR
*PASCAL FAR
getprotobyname(
  _In_z_ const char FAR *name);

int
PASCAL FAR
WSAStartup(
  _In_ WORD wVersionRequired,
  _Out_ LPWSADATA lpWSAData);

int
PASCAL FAR
WSACleanup(void);

void
PASCAL FAR
WSASetLastError(
  _In_ int iError);

int
PASCAL FAR
WSAGetLastError(void);

BOOL
PASCAL FAR
WSAIsBlocking(void);

int
PASCAL FAR
WSAUnhookBlockingHook(void);

FARPROC
PASCAL FAR
WSASetBlockingHook(
  _In_ FARPROC lpBlockFunc);

int
PASCAL FAR
WSACancelBlockingCall(void);

HANDLE
PASCAL FAR
WSAAsyncGetServByName(
  _In_ HWND hWnd,
  _In_ u_int wMsg,
  _In_z_ const char FAR *name,
  _In_z_ const char FAR *proto,
  _Out_writes_bytes_(buflen) char FAR *buf,
  _In_ int buflen);

HANDLE
PASCAL FAR
WSAAsyncGetServByPort(
  _In_ HWND hWnd,
  _In_ u_int wMsg,
  _In_ int port,
  _In_ const char FAR *proto,
  _Out_writes_bytes_(buflen) char FAR *buf,
  _In_ int buflen);

HANDLE
PASCAL FAR
WSAAsyncGetProtoByName(
  _In_ HWND hWnd,
  _In_ u_int wMsg,
  _In_z_ const char FAR *name,
  _Out_writes_bytes_(buflen) char FAR *buf,
  _In_ int buflen);

HANDLE
PASCAL FAR
WSAAsyncGetProtoByNumber(
  _In_ HWND hWnd,
  _In_ u_int wMsg,
  _In_ int number,
  _Out_writes_bytes_(buflen) char FAR *buf,
  _In_ int buflen);

HANDLE
PASCAL FAR
WSAAsyncGetHostByName(
  _In_ HWND hWnd,
  _In_ u_int wMsg,
  _In_z_ const char FAR *name,
  _Out_writes_bytes_(buflen) char FAR *buf,
  _In_ int buflen);

HANDLE
PASCAL FAR
WSAAsyncGetHostByAddr(
  _In_ HWND hWnd,
  _In_ u_int wMsg,
  _In_ const char FAR *addr,
  _In_ int len,
  _In_ int type,
  _Out_writes_bytes_(buflen) char FAR *buf,
  _In_ int buflen);

int
PASCAL FAR
WSACancelAsyncRequest(
  _In_ HANDLE hAsyncTaskHandle);

int
PASCAL FAR
WSAAsyncSelect(
  _In_ SOCKET s,
  _In_ HWND hWnd,
  _In_ u_int wMsg,
  _In_ long lEvent);

int
PASCAL FAR
WSARecvEx(
  _In_ SOCKET s,
  _Out_writes_bytes_to_(len, return) __out_data_source(NETWORK) char FAR *buf,
  _In_ int len,
  _Inout_ int FAR *flags);

typedef struct _TRANSMIT_FILE_BUFFERS {
  PVOID Head;
  DWORD HeadLength;
  PVOID Tail;
  DWORD TailLength;
} TRANSMIT_FILE_BUFFERS, *PTRANSMIT_FILE_BUFFERS, *LPTRANSMIT_FILE_BUFFERS;

BOOL
PASCAL FAR
TransmitFile(
  _In_ SOCKET hSocket,
  _In_ HANDLE hFile,
  _In_ DWORD nNumberOfBytesToWrite,
  _In_ DWORD nNumberOfBytesPerSend,
  _Inout_opt_ LPOVERLAPPED lpOverlapped,
  _In_opt_ LPTRANSMIT_FILE_BUFFERS lpTransmitBuffers,
  _In_ DWORD dwReserved);

BOOL
PASCAL FAR
AcceptEx(
  _In_ SOCKET sListenSocket,
  _In_ SOCKET sAcceptSocket,
  _Out_writes_bytes_to_(dwReceiveDataLength + dwLocalAddressLength + dwRemoteAddressLength, *lpdwBytesReceived) PVOID lpOutputBuffer,
  _In_ DWORD dwReceiveDataLength,
  _In_ DWORD dwLocalAddressLength,
  _In_ DWORD dwRemoteAddressLength,
  _Out_ LPDWORD lpdwBytesReceived,
  _Inout_ LPOVERLAPPED lpOverlapped);

VOID
PASCAL FAR
GetAcceptExSockaddrs(
  _In_reads_bytes_(dwReceiveDataLength + dwLocalAddressLength + dwRemoteAddressLength) PVOID lpOutputBuffer,
  _In_ DWORD dwReceiveDataLength,
  _In_ DWORD dwLocalAddressLength,
  _In_ DWORD dwRemoteAddressLength,
  _Outptr_result_bytebuffer_(*LocalSockaddrLength) struct sockaddr **LocalSockaddr,
  _Out_ LPINT LocalSockaddrLength,
  _Outptr_result_bytebuffer_(*RemoteSockaddrLength) struct sockaddr **RemoteSockaddr,
  _Out_ LPINT RemoteSockaddrLength);

#if(_WIN32_WINNT >= 0x0501)

#ifdef IPV6STRICT
#error WINSOCK2 required.
#endif

#endif /* (_WIN32_WINNT >= 0x0501) */

#ifdef __cplusplus
}
#endif