* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Author: François PIETTE, C.H.R. Citadelle
EMail: francois.piette@ping.be http://www.rtfm.be/fpiette
francois.piette@rtfm.be
Creation: July 18, 1996
Object: Windows 16bit API Interface Unit for Delphi 1.x and
compatible with Borland Delphi 2.x Winsock
Support: Please ask your question in the following newsgroup:
news://forums.borland.com/borland.public.delphi.vcl.components.using
Legal issues: Copyright (C) 1997 by François PIETTE
This software is provided 'as-is', without any express or
implied warranty. In no event will the author be held liable
for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any
purpose, including commercial applications, and to alter it
and redistribute it freely, subject to the following
restrictions:
1. The origin of this software must not be misrepresented,
you must not claim that you wrote the original software.
If you use this software in a product, an acknowledgment
in the product documentation would be appreciated but is
not required.
2. Altered source versions must be plainly marked as such, and
must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
Updates:
Sep 21, 1997 Added $IFDEF to warn Delphi 2 or 3 user that something is wrong
if they use this file.
Dec 13, 1997 Changed winsocket form 'WINSOCK.DLL' to 'WINSOCK' because Win 3.x
like thos have it without extension (don't ask me why !)
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * accept - Socket function prototypes
bind -
closesocket -
connect -
gethostbyaddr -
gethostbyname -
gethostname -
getpeername -
getprotobyname -
getprotobynumber -
getservbyname -
getservbyport -
getsockname -
getsockopt -
htonl -
htons -
inet_addr -
inet_ntoa -
ioctlsocket -
listen -
ntohl -
ntohs -
recv -
recvfrom -
select -
send -
sendto -
setsockopt -
shutdown -
socket -
WSAAsyncGetHostByAddr -
WSAAsyncGetHostByName -
WSAAsyncGetProtoByName -
WSAAsyncGetProtoByNumber -
WSAAsyncGetServByName -
WSAAsyncGetServByPort -
WSAAsyncSelect -
WSACancelAsyncRequest -
WSACancelBlockingCall -
WSACleanup -
WSAGetAsyncBuflen -
WSAGetAsyncError -
WSAGetLastError -
WSAGetSelectError -
WSAGetSelectEvent -
WSAIsBlocking -
WSAMakeSelectReply -
WSAMakeSyncReply -
WSARecvEx -
WSASetBlockingHook -
WSASetLastError -
WSAStartup -
WSAUnhookBlockingHook -
HostEnt
NetEnt
PFDSet
PHostEnt
PInAddr
PNetEnt
Pprotoent
Protoent
PServEnt
PSockAddrIn
PTimeVal
PWSADATA
ServEnt
short
SunB
SunW
TFDSet
TInAddr
TLinger
TSockAddr
TSockAddrIn
TSocket
TSockProto
TTimeVal
TWSADATA
u_char
u_int
u_long
u_short
AF_APPLETALK
AF_CCITT
AF_CHAOS
AF_DATAKIT
AF_DECnet
AF_DLI
AF_ECMA
AF_HYLINK
AF_IMPLINK
AF_INET
AF_ISO
AF_LAT
AF_MAX
AF_NETBIOS
AF_NS
AF_OSI
AF_PUP
AF_SNA
AF_UNIX
AF_UNSPEC
EADDRINUSE
EADDRNOTAVAIL
EAFNOSUPPORT
EALREADY
ECONNABORTED
ECONNREFUSED
ECONNRESET
EDESTADDRREQ
EDQUOT
EHOSTDOWN
EHOSTUNREACH
EINPROGRESS
EISCONN
ELOOP
EMSGSIZE
ENAMETOOLONG
ENETDOWN
ENETRESET
ENETUNREACH
ENOBUFS
ENOPROTOOPT
ENOTCONN
ENOTEMPTY
ENOTSOCK
EOPNOTSUPP
EPFNOSUPPORT
EPROCLIM
EPROTONOSUPPORT
EPROTOTYPE
EREMOTE
ESHUTDOWN
ESOCKTNOSUPPORT
ESTALE
ETIMEDOUT
ETOOMANYREFS
EUSERS
EWOULDBLOCK
FD_ACCEPT
FD_CLOSE
FD_CONNECT
FD_OOB
FD_READ
FD_SETSIZE
FD_WRITE
FIOASYNC
FIONBIO
FIONREAD
HOST_NOT_FOUND
IMPLINK_HIGHEXPER
IMPLINK_IP
IMPLINK_LOWEXPER
INADDR_ANY
INADDR_BROADCAST
INADDR_LOOPBACK
INADDR_NONE
INVALID_SOCKET
IOCPARM_MASK
IOC_IN
IOC_INOUT
IOC_OUT
IOC_VOID
IPPORT_ANY
IPPORT_BIFFUDP
IPPORT_CMDSERVER
IPPORT_DAYTIME
IPPORT_DISCARD
IPPORT_ECHO
IPPORT_EFSSERVER
IPPORT_EXECSERVER
IPPORT_FINGER
IPPORT_FTP
IPPORT_LOGINSERVER
IPPORT_MTP
IPPORT_NAMESERVER
IPPORT_NETSTAT
IPPORT_RESERVED
IPPORT_RJE
IPPORT_ROUTESERVER
IPPORT_SMTP
IPPORT_SUPDUP
IPPORT_SYSTAT
IPPORT_TELNET
IPPORT_TFTP
IPPORT_TIMESERVER
IPPORT_TTYLINK
IPPORT_WHOIS
IPPORT_WHOSERVER
IPPROTO_GGP
IPPROTO_ICMP
IPPROTO_IDP
IPPROTO_IP
IPPROTO_MAX
IPPROTO_ND
IPPROTO_PUP
IPPROTO_RAW
IPPROTO_TCP
IPPROTO_UDP
MAXGETHOSTSTRUCT
MSG_DONTROUTE
MSG_MAXIOVLEN
MSG_OOB
MSG_PEEK
NO_ADDRESS
NO_DATA
NO_RECOVERY
PF_APPLETALK
PF_CCITT
PF_CHAOS
PF_DATAKIT
PF_DECnet
PF_DLI
PF_ECMA
PF_HYLINK
PF_IMPLINK
PF_INET
PF_ISO
PF_LAT
PF_MAX
PF_NS
PF_OSI
PF_PUP
PF_SNA
PF_UNIX
PF_UNSPEC
SIOCATMARK
SIOCGHIWAT
SIOCGLOWAT
SIOCSHIWAT
SIOCSLOWAT
SOCKET_ERROR
SOCK_DGRAM
SOCK_RAW
SOCK_RDM
SOCK_SEQPACKET
SOCK_STREAM
SOL_SOCKET
SOMAXCONN
SO_ACCEPTCONN
SO_BROADCAST
SO_DEBUG
SO_DONTLINGER
SO_DONTROUTE
SO_ERROR
SO_KEEPALIVE
SO_LINGER
SO_OOBINLINE
SO_RCVBUF
SO_RCVLOWAT
SO_RCVTIMEO
SO_REUSEADDR
SO_SNDBUF
SO_SNDLOWAT
SO_SNDTIMEO
SO_TYPE
SO_USELOOPBACK
TCP_NODELAY
TRY_AGAIN
winsocket
WSABASEERR
WSADESCRIPTION_LEN
WSAEACCES
WSAEADDRINUSE
WSAEADDRNOTAVAIL
WSAEAFNOSUPPORT
WSAEALREADY
WSAEBADF
WSAECONNABORTED
WSAECONNREFUSED
WSAECONNRESET
WSAEDESTADDRREQ
WSAEDQUOT
WSAEFAULT
WSAEHOSTDOWN
WSAEHOSTUNREACH
WSAEINPROGRESS
WSAEINTR
WSAEINVAL
WSAEISCONN
WSAELOOP
WSAEMFILE
WSAEMSGSIZE
WSAENAMETOOLONG
WSAENETDOWN
WSAENETRESET
WSAENETUNREACH
WSAENOBUFS
WSAENOPROTOOPT
WSAENOTCONN
WSAENOTEMPTY
WSAENOTSOCK
WSAEOPNOTSUPP
WSAEPFNOSUPPORT
WSAEPROCLIM
WSAEPROTONOSUPPORT
WSAEPROTOTYPE
WSAEREMOTE
WSAESHUTDOWN
WSAESOCKTNOSUPPORT
WSAESTALE
WSAETIMEDOUT
WSAETOOMANYREFS
WSAEUSERS
WSAEWOULDBLOCK
WSAHOST_NOT_FOUND
WSANOTINITIALISED
WSANO_ADDRESS
WSANO_DATA
WSANO_RECOVERY
WSASYSNOTREADY
WSASYS_STATUS_LEN
WSATRY_AGAIN
WSAVERNOTSUPPORTED
function accept(s: TSocket; var addr: TSockAddr; var addrlen: Integer): TSocket;
Socket function prototypes
function bind(s: TSocket; var addr: TSockAddr; namelen: Integer): Integer;
function closesocket(s: TSocket): Integer;
function connect(s: TSocket; var name: TSockAddr; namelen: Integer): Integer;
function gethostbyaddr(addr: Pointer; len, struct: Integer): PHostEnt;
function gethostbyname(name: PChar): PHostEnt;
function gethostname(name: PChar; len: Integer): Integer;
function getpeername(s: TSocket; var name: TSockAddr; var namelen: Integer): Integer;
function getprotobyname(name: PChar): PProtoEnt;
function getprotobynumber(proto: Integer): PProtoEnt;
function getservbyname(name, proto: PChar): PServEnt;
function getservbyport(port: Integer; proto: PChar): PServEnt;
function getsockname(s: TSocket; var name: TSockAddr; var namelen: Integer): Integer;
function getsockopt(s: TSocket; level, optname: Integer; optval: PChar; var optlen: Integer): Integer;
function htonl(hostlong: u_long): u_long;
function htons(hostshort: u_short): u_short;
function inet_addr(cp: PChar): u_long;
function inet_ntoa(inaddr: TInAddr): PChar;
function ioctlsocket(s: TSocket; cmd: Longint; var arg: u_long): Integer;
function listen(s: TSocket; backlog: Integer): Integer;
function ntohl(netlong: u_long): u_long;
function ntohs(netshort: u_short): u_short;
function recv(s: TSocket; var Buf; len, flags: Integer): Integer;
function recvfrom(s: TSocket; var Buf; len, flags: Integer;
var from: TSockAddr; var fromlen: Integer): Integer;
function select(nfds: Integer; readfds, writefds, exceptfds: PFDSet;
timeout: PTimeVal): Longint;
function send(s: TSocket; var Buf; len, flags: Integer): Integer;
function sendto(s: TSocket; var Buf; len, flags: Integer; var addrto: TSockAddr;
tolen: Integer): Integer;
function setsockopt(s: TSocket; level, optname: Integer; optval: PChar;
optlen: Integer): Integer;
function shutdown(s: TSocket; how: Integer): Integer;
function socket(af, struct, protocol: Integer): TSocket;
function WSAAsyncGetHostByAddr(HWindow: HWND; wMsg: u_int; addr: PChar;
len, struct: Integer; buf: PChar; buflen: Integer): THandle;
function WSAAsyncGetHostByName(HWindow: HWND; wMsg: u_int;
name, buf: PChar; buflen: Integer): THandle;
function WSAAsyncGetProtoByName(HWindow: HWND; wMsg: u_int;
name, buf: PChar; buflen: Integer): THandle;
function WSAAsyncGetProtoByNumber(HWindow: HWND; wMsg: u_int; number: Integer;
buf: PChar; buflen: Integer): THandle;
function WSAAsyncGetServByName(HWindow: HWND; wMsg: u_int;
name, proto, buf: PChar; buflen: Integer): THandle;
function WSAAsyncGetServByPort( HWindow: HWND; wMsg, port: u_int;
proto, buf: PChar; buflen: Integer): THandle;
function WSAAsyncSelect(s: TSocket; HWindow: HWND; wMsg: u_int; lEvent: Longint): Integer;
function WSACancelAsyncRequest(hAsyncTaskHandle: THandle): Integer;
function WSACancelBlockingCall: Integer;
function WSACleanup: Integer;
function WSAGetAsyncBuflen(Param: Longint): Word;
function WSAGetAsyncError(Param: Longint): Word;
function WSAGetLastError: Integer;
function WSAGetSelectError(Param: Longint): Word;
function WSAGetSelectEvent(Param: Longint): Word;
function WSAIsBlocking: BOOL;
function WSAMakeSelectReply(Event, Error: Word): Longint;
function WSAMakeSyncReply(Buflen, Error: Word): Longint;
function WSARecvEx(s: TSocket; var buf; len: Integer; var flags: Integer): Integer;
function WSASetBlockingHook(lpBlockFunc: TFarProc): TFarProc;
procedure WSASetLastError(iError: Integer);
function WSAStartup(wVersionRequired: word; var WSData: TWSAData): Integer;
function WSAUnhookBlockingHook: Integer;
HostEnt = record
h_name : PChar;
h_aliases : ^PChar;
h_addrtype : short;
h_length : short;
h_addr_list : ^PChar;
end;
Structures returned by network data base library, taken from the
BSD file netdb.h. All addresses are supplied in host order, and
returned in network order (suitable for use in system calls).
NetEnt = record
n_name : PChar;
n_aliases : ^PChar;
n_addrtype : short;
n_net : u_long;
end;
PFDSet = ^TFDSet
PHostEnt = ^HostEnt
list of addresses
PInAddr = ^TInAddr
PNetEnt = ^NetEnt
network #
Pprotoent = ^protoent
protocol #
Protoent = record
p_name : PChar;
p_aliases : ^PChar;
p_proto : integer;
end;
PServEnt = ^ServEnt
protocol to use
PSockAddrIn = ^TSockAddrIn
PTimeVal = ^TTimeVal
PWSADATA = ^TWSADATA
ServEnt = record
s_name : PChar;
s_aliases : ^PChar;
s_port : integer;
s_proto : PChar;
end;
short = word
SunB = record
s_b1 : u_char;
s_b2 : u_char;
s_b3 : u_char;
s_b4 : u_char;
end;
Internet address (old style... should be updated)
SunW = record
s_w1 : u_short;
s_w2 : u_short;
end;
TFDSet = record
fd_count : u_short;
fd_array : array [0..(FD_SETSIZE - 1)] of TSocket;
end;
Select uses arrays of SOCKETs.
TInAddr = record
end;
TLinger = record
l_onoff : u_short;
l_linger : u_short;
end;
Structure used for manipulating linger option.
TSockAddr = TSockAddrIn
TSockAddrIn = record
end;
Socket address, internet style.
TSocket = u_int
low level handle wich refer to sockets
TSockProto = record
sp_family : u_short;
sp_protocol : u_short;
end;
Structure used by kernel to pass protocol information in raw sockets.
TTimeVal = record
tv_sec : longint;
tv_usec : longint;
end;
Structure used in select() call, taken from the BSD file sys/time.h.
TWSADATA = record
wVersion : word;
wHighVersion : word;
szDescription : array [0..WSADESCRIPTION_LEN] of char;
szSystemStatus : array [0..WSASYS_STATUS_LEN] of char;
iMaxSockets : u_short;
iMaxUdpDg : u_short;
lpVendorInfo : PChar;
end;
u_char = byte
Basic system type definitions, taken from the BSD file sys/types.h.
u_int = word
u_long = longint
u_short = word
AF_APPLETALK = 16
NSC Hyperchannel
AF_CCITT = 10
datakit protocols
AF_CHAOS = 5
pup protocols: e.g. BSP
AF_DATAKIT = 9
european computer manufacturers
AF_DECnet = 12
IBM SNA
AF_DLI = 13
DECnet
AF_ECMA = 8
OSI is ISO
AF_HYLINK = 15
LAT
AF_IMPLINK = 3
internetwork: UDP, TCP, etc.
AF_INET = 2
local to host (pipes, portals)
AF_ISO = 7
XEROX NS protocols
AF_LAT = 14
Direct data link interface
AF_MAX = 18
NetBios-style addresses
AF_NETBIOS = 17
AppleTalk
AF_NS = 6
mit CHAOS protocols
AF_OSI = AF_ISO
ISO protocols
AF_PUP = 4
arpanet imp addresses
AF_SNA = 11
CCITT protocols, X.25 etc
AF_UNIX = 1
unspecified
AF_UNSPEC = 0
Address families
EADDRINUSE = WSAEADDRINUSE
EADDRNOTAVAIL = WSAEADDRNOTAVAIL
EAFNOSUPPORT = WSAEAFNOSUPPORT
EALREADY = WSAEALREADY
ECONNABORTED = WSAECONNABORTED
ECONNREFUSED = WSAECONNREFUSED
ECONNRESET = WSAECONNRESET
EDESTADDRREQ = WSAEDESTADDRREQ
EDQUOT = WSAEDQUOT
EHOSTDOWN = WSAEHOSTDOWN
EHOSTUNREACH = WSAEHOSTUNREACH
EINPROGRESS = WSAEINPROGRESS
EISCONN = WSAEISCONN
ELOOP = WSAELOOP
EMSGSIZE = WSAEMSGSIZE
ENAMETOOLONG = WSAENAMETOOLONG
ENETDOWN = WSAENETDOWN
ENETRESET = WSAENETRESET
ENETUNREACH = WSAENETUNREACH
ENOBUFS = WSAENOBUFS
ENOPROTOOPT = WSAENOPROTOOPT
ENOTCONN = WSAENOTCONN
ENOTEMPTY = WSAENOTEMPTY
ENOTSOCK = WSAENOTSOCK
EOPNOTSUPP = WSAEOPNOTSUPP
EPFNOSUPPORT = WSAEPFNOSUPPORT
EPROCLIM = WSAEPROCLIM
EPROTONOSUPPORT = WSAEPROTONOSUPPORT
EPROTOTYPE = WSAEPROTOTYPE
EREMOTE = WSAEREMOTE
ESHUTDOWN = WSAESHUTDOWN
ESOCKTNOSUPPORT = WSAESOCKTNOSUPPORT
ESTALE = WSAESTALE
ETIMEDOUT = WSAETIMEDOUT
ETOOMANYREFS = WSAETOOMANYREFS
EUSERS = WSAEUSERS
EWOULDBLOCK = WSAEWOULDBLOCK
Windows Sockets errors redefined as regular Berkeley error constants
FD_ACCEPT = 8
FD_CLOSE = 32
FD_CONNECT = 16
FD_OOB = 4
FD_READ = 1
Define flags to be used with the WSAAsyncSelect() call
FD_SETSIZE = 64
If your application can't find winsock.dll on startup, please try to } { change the preceding line to "winsocket = 'winsock.dll';" } { Also, try upper or lower case letters. Win 3.x is very capricious ! } { Misc constants
FD_WRITE = 2
FIOASYNC = $8004667D
set/clear non-blocking i/o
FIONBIO = $8004667E
get # bytes to read
FIONREAD = $4004667F
HOST_NOT_FOUND = WSAHOST_NOT_FOUND
IMPLINK_HIGHEXPER = 158
IMPLINK_IP = 155
Link numbers
IMPLINK_LOWEXPER = 156
INADDR_ANY = $00000000
at oob mark?
INADDR_BROADCAST = $ffffffff
INADDR_LOOPBACK = $7f000001
INADDR_NONE = $ffffffff
INVALID_SOCKET = $ffff
IOCPARM_MASK = $7f
Commands for ioctlsocket(), taken from the BSD file fcntl.h.
Ioctl's have the command encoded in the lower word,
and the size of any in or out parameters in the upper
word. The high 2 bits of the upper word are used
to encode the in/out status of the parameter; for now
we restrict parameters to at most 128 bytes.
0x20000000 distinguishes new & old ioctl's
IOC_IN = $80000000
copy out parameters
IOC_INOUT = (IOC_IN + IOC_OUT)
copy in parameters
IOC_OUT = $40000000
no parameters
IOC_VOID = $20000000
parameters must be < 128 bytes
IPPORT_ANY = 0
Port/socket numbers: network standard functions
IPPORT_BIFFUDP = 512
UNIX UDP sockets
IPPORT_CMDSERVER = 514
IPPORT_DAYTIME = 13
IPPORT_DISCARD = 9
IPPORT_ECHO = 7
IPPORT_EFSSERVER = 520
IPPORT_EXECSERVER = 512
UNIX TCP sockets
IPPORT_FINGER = 79
IPPORT_FTP = 21
IPPORT_LOGINSERVER = 513
IPPORT_MTP = 57
IPPORT_NAMESERVER = 42
IPPORT_NETSTAT = 15
IPPORT_RESERVED = 1024
Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root)
IPPORT_RJE = 77
IPPORT_ROUTESERVER = 520
IPPORT_SMTP = 25
IPPORT_SUPDUP = 95
IPPORT_SYSTAT = 11
IPPORT_TELNET = 23
IPPORT_TFTP = 69
Port/socket numbers: host specific functions
IPPORT_TIMESERVER = 37
IPPORT_TTYLINK = 87
IPPORT_WHOIS = 43
IPPORT_WHOSERVER = 513
IPPROTO_GGP = 2
control message protocol
IPPROTO_ICMP = 1
dummy for IP
IPPROTO_IDP = 22
user datagram protocol
IPPROTO_IP = 0
Protocols
IPPROTO_MAX = 256
raw IP packet
IPPROTO_ND = 77
xns idp
IPPROTO_PUP = 12
tcp
IPPROTO_RAW = 255
UNOFFICIAL net disk proto
IPPROTO_TCP = 6
gateway^2 (deprecated)
IPPROTO_UDP = 17
pup
MAXGETHOSTSTRUCT = 1024
Define constant based on rfc883, used by gethostbyxxxx() calls
MSG_DONTROUTE = 4
peek at incoming message
MSG_MAXIOVLEN = 16
send without using routing tables
MSG_OOB = 1
MSG_PEEK = 2
process out-of-band data
NO_ADDRESS = WSANO_ADDRESS
NO_DATA = WSANO_DATA
NO_RECOVERY = WSANO_RECOVERY
PF_APPLETALK = AF_APPLETALK
PF_CCITT = AF_CCITT
PF_CHAOS = AF_CHAOS
PF_DATAKIT = AF_DATAKIT
PF_DECnet = AF_DECnet
PF_DLI = AF_DLI
PF_ECMA = AF_ECMA
PF_HYLINK = AF_HYLINK
PF_IMPLINK = AF_IMPLINK
PF_INET = AF_INET
PF_ISO = AF_ISO
PF_LAT = AF_LAT
PF_MAX = AF_MAX
PF_NS = AF_NS
PF_OSI = AF_OSI
PF_PUP = AF_PUP
PF_SNA = AF_SNA
PF_UNIX = AF_UNIX
PF_UNSPEC = AF_UNSPEC
Protocol families, same as address families for now
SIOCATMARK = $40047307
get low watermark
SIOCGHIWAT = $40047301
set high watermark
SIOCGLOWAT = $40047303
set low watermark
SIOCSHIWAT = $80047300
set/clear async i/o } { Socket I/O Controls
SIOCSLOWAT = $80047302
set low watermark
SOCKET_ERROR = (-1)
SOCK_DGRAM = 2
stream socket
SOCK_RAW = 3
datagram socket
SOCK_RDM = 4
raw-protocol interface
SOCK_SEQPACKET = 5
reliably-delivered message
SOCK_STREAM = 1
Types
SOL_SOCKET = -1
Level number for (get/set)sockopt() to apply to socket itself
SOMAXCONN = 5
options for socket level } { Maximum queue length specifiable by listen
SO_ACCEPTCONN = $0002
turn on debugging info recording
SO_BROADCAST = $0020
just use interface addresses
SO_DEBUG = $0001
sequenced packet stream } { Option flags per-socket
SO_DONTLINGER = (not SO_LINGER)
leave received OOB data in line
SO_DONTROUTE = $0010
keep connections alive
SO_ERROR = $1007
receive timeout
SO_KEEPALIVE = $0008
allow local address reuse
SO_LINGER = $0080
bypass hardware when possible
SO_OOBINLINE = $0100
linger on close if data present
SO_RCVBUF = $1002
send buffer size
SO_RCVLOWAT = $1004
send low-water mark
SO_RCVTIMEO = $1006
send timeout
SO_REUSEADDR = $0004
socket has had listen()
SO_SNDBUF = $1001
Additional options
SO_SNDLOWAT = $1003
receive buffer size
SO_SNDTIMEO = $1005
receive low-water mark
SO_TYPE = $1008
get error status and clear
SO_USELOOPBACK = $0040
permit sending of broadcast msgs
TCP_NODELAY = $0001
get socket type } { TCP options
TRY_AGAIN = WSATRY_AGAIN
winsocket = 'WINSOCK'
WSABASEERR = 10000
All Windows Sockets error constants are biased by WSABASEERR fromthe normal
WSADESCRIPTION_LEN = 256
WSAEACCES = (WSABASEERR+13)
WSAEADDRINUSE = (WSABASEERR+48)
WSAEADDRNOTAVAIL = (WSABASEERR+49)
WSAEAFNOSUPPORT = (WSABASEERR+47)
WSAEALREADY = (WSABASEERR+37)
WSAEBADF = (WSABASEERR+9)
WSAECONNABORTED = (WSABASEERR+53)
WSAECONNREFUSED = (WSABASEERR+61)
WSAECONNRESET = (WSABASEERR+54)
WSAEDESTADDRREQ = (WSABASEERR+39)
WSAEDQUOT = (WSABASEERR+69)
WSAEFAULT = (WSABASEERR+14)
WSAEHOSTDOWN = (WSABASEERR+64)
WSAEHOSTUNREACH = (WSABASEERR+65)
WSAEINPROGRESS = (WSABASEERR+36)
WSAEINTR = (WSABASEERR+4)
Windows Sockets definitions of regular Microsoft C error constants
WSAEINVAL = (WSABASEERR+22)
WSAEISCONN = (WSABASEERR+56)
WSAELOOP = (WSABASEERR+62)
WSAEMFILE = (WSABASEERR+24)
WSAEMSGSIZE = (WSABASEERR+40)
WSAENAMETOOLONG = (WSABASEERR+63)
WSAENETDOWN = (WSABASEERR+50)
WSAENETRESET = (WSABASEERR+52)
WSAENETUNREACH = (WSABASEERR+51)
WSAENOBUFS = (WSABASEERR+55)
WSAENOPROTOOPT = (WSABASEERR+42)
WSAENOTCONN = (WSABASEERR+57)
WSAENOTEMPTY = (WSABASEERR+66)
WSAENOTSOCK = (WSABASEERR+38)
WSAEOPNOTSUPP = (WSABASEERR+45)
WSAEPFNOSUPPORT = (WSABASEERR+46)
WSAEPROCLIM = (WSABASEERR+67)
WSAEPROTONOSUPPORT = (WSABASEERR+43)
WSAEPROTOTYPE = (WSABASEERR+41)
WSAEREMOTE = (WSABASEERR+71)
WSAESHUTDOWN = (WSABASEERR+58)
WSAESOCKTNOSUPPORT = (WSABASEERR+44)
WSAESTALE = (WSABASEERR+70)
WSAETIMEDOUT = (WSABASEERR+60)
WSAETOOMANYREFS = (WSABASEERR+59)
WSAEUSERS = (WSABASEERR+68)
WSAEWOULDBLOCK = (WSABASEERR+35)
Windows Sockets definitions of regular Berkeley error constants
WSAHOST_NOT_FOUND = (WSABASEERR+1001)
Authoritative Answer: Host not found
WSANOTINITIALISED = (WSABASEERR+93)
WSANO_ADDRESS = WSANO_DATA
no address, look for MX record
WSANO_DATA = (WSABASEERR+1004)
Valid name, no data record of requested type
WSANO_RECOVERY = (WSABASEERR+1003)
Non recoverable errors, FORMERR, REFUSED, NOTIMP
WSASYSNOTREADY = (WSABASEERR+91)
Extended Windows Sockets error constant definitions
WSASYS_STATUS_LEN = 128
WSATRY_AGAIN = (WSABASEERR+1002)
Non-Authoritative: Host not found, or SERVERFAIL
WSAVERNOTSUPPORTED = (WSABASEERR+92)