Renegade-1.19/SOURCE/ELECOM/SOCKDEF.PAS

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2022-06-21 17:11:35 -07:00
unit SockDef;
(*
**
** SOCKDEF routines
**
** Copyright (c) 1998 by Thomas W. Mueller
**
** Created : 24-Oct-1998
** Last update : 24-Oct-1998
**
**
*)
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INTERFACE
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uses
Sysutils,
{$IFDEF OS2}
Os2def;
{$ENDIF}
{$IFDEF LINUX}
Linux;
{$ENDIF}
{$IFDEF WIN32}
Windows;
{$ENDIF}
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{$IFDEF VER0_99_13}
type pInteger = ^Integer;
tFarProc = pointer;
SmallInt = System.Integer;
{$ENDIF}
{$IFDEF LINUX}
type ULONG = longint;
{$ENDIF}
type
tSockDesc = LongInt;
SmallWord = System.Word;
type
eSocketErr = class(Exception);
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const
MaxHostNameLen = 120;
(*
** Option flags per-socket.
*)
{$IFNDEF LINUX}
(*
** Level number for (get/set)sockopt() to apply to socket itself.
*)
SOL_SOCKET =$ffff; // options for socket level
SO_DEBUG =$0001; // turn on debugging info recording
SO_ACCEPTCONN =$0002; // socket has had listen()
SO_REUSEADDR =$0004; // allow local address reuse
SO_KEEPALIVE =$0008; // keep connections alive
SO_DONTROUTE =$0010; // just use interface addresses
SO_BROADCAST =$0020; // permit sending of broadcast msgs
SO_USELOOPBACK =$0040; // bypass hardware when possible
SO_LINGER =$0080; // linger on close if data present
SO_OOBINLINE =$0100; // leave received OOB data in line
(*
** Additional options, not kept in so_options.
*)
SO_SNDBUF =$1001; // send buffer size
SO_RCVBUF =$1002; // receive buffer size
SO_SNDLOWAT =$1003; // send low-water mark
SO_RCVLOWAT =$1004; // receive low-water mark
SO_SNDTIMEO =$1005; // send timeout
SO_RCVTIMEO =$1006; // receive timeout
SO_ERROR =$1007; // get error status and clear
SO_TYPE =$1008; // get socket type
{$ELSE}
SOL_SOCKET = 1;
SO_DEBUG = 1;
SO_REUSEADDR = 2;
SO_TYPE = 3;
SO_ERROR = 4;
SO_DONTROUTE = 5;
SO_BROADCAST = 6;
SO_SNDBUF = 7;
SO_RCVBUF = 8;
SO_KEEPALIVE = 9;
SO_OOBINLINE = 10;
SO_NO_CHECK = 11;
SO_PRIORITY = 12;
SO_LINGER = 13;
SO_BSDCOMPAT = 14;
{$ENDIF}
(*
** Address families.
*)
AF_UNSPEC = 0; // unspecified
AF_UNIX = 1; // local to host (pipes, portals)
AF_INET = 2; // internetwork: UDP, TCP, etc.
AF_IMPLINK = 3; // arpanet imp addresses
AF_PUP = 4; // pup protocols: e.g. BSP
AF_CHAOS = 5; // mit CHAOS protocols
AF_NS = 6; // XEROX NS protocols
AF_NBS = 7; // nbs protocols
AF_ECMA = 8; // european computer manufacturers
AF_DATAKIT = 9; // datakit protocols
AF_CCITT = 10; // CCITT protocols, X.25 etc
AF_SNA = 11; // IBM SNA
AF_DECnet = 12; // DECnet
AF_DLI = 13; // Direct data link interface
AF_LAT = 14; // LAT
AF_HYLINK = 15; // NSC Hyperchannel
AF_APPLETALK = 16; // Apple Talk
AF_OS2 = AF_UNIX;
AF_NB = 17; // Netbios
AF_NETBIOS = AF_NB;
AF_MAX = 18;
(*
** Protocol families, same as address families for now.
*)
PF_UNSPEC = AF_UNSPEC;
PF_UNIX = AF_UNIX;
PF_INET = AF_INET;
PF_IMPLINK = AF_IMPLINK;
PF_PUP = AF_PUP;
PF_CHAOS = AF_CHAOS;
PF_NS = AF_NS;
PF_NBS = AF_NBS;
PF_ECMA = AF_ECMA;
PF_DATAKIT = AF_DATAKIT;
PF_CCITT = AF_CCITT;
PF_SNA = AF_SNA;
PF_DECnet = AF_DECnet;
PF_DLI = AF_DLI;
PF_LAT = AF_LAT;
PF_HYLINK = AF_HYLINK;
PF_APPLETALK = AF_APPLETALK;
PF_NETBIOS = AF_NB;
PF_NB = AF_NB;
PF_OS2 = PF_UNIX;
PF_MAX = AF_MAX;
(*
** Maximum queue length specifiable by listen.
*)
SOMAXCONN = 5;
FREAD =1;
FWRITE =2;
MSG_OOB =$1; // process out-of-band data
MSG_PEEK =$2; // peek at incoming message
MSG_DONTROUTE =$4; // send without using routing tables
MSG_FULLREAD =$8; // send without using routing tables
MSG_MAXIOVLEN =16;
const
{ All Windows Sockets error constants are biased by WSABASEERR from the "normal" }
WSABASEERR = 10000;
{ Windows Sockets definitions of regular Microsoft C error constants }
WSAEINTR = (WSABASEERR+4);
WSAEBADF = (WSABASEERR+9);
WSAEACCES = (WSABASEERR+13);
WSAEFAULT = (WSABASEERR+14);
WSAEINVAL = (WSABASEERR+22);
WSAEMFILE = (WSABASEERR+24);
{ Windows Sockets definitions of regular Berkeley error constants }
{$IFNDEF LINUX}
WSAEWOULDBLOCK = (WSABASEERR+35);
WSAEINPROGRESS = (WSABASEERR+36);
WSAEALREADY = (WSABASEERR+37);
WSAENOTSOCK = (WSABASEERR+38);
WSAEDESTADDRREQ = (WSABASEERR+39);
WSAEMSGSIZE = (WSABASEERR+40);
WSAEPROTOTYPE = (WSABASEERR+41);
WSAENOPROTOOPT = (WSABASEERR+42);
WSAEPROTONOSUPPORT = (WSABASEERR+43);
WSAESOCKTNOSUPPORT = (WSABASEERR+44);
WSAEOPNOTSUPP = (WSABASEERR+45);
WSAEPFNOSUPPORT = (WSABASEERR+46);
WSAEAFNOSUPPORT = (WSABASEERR+47);
WSAEADDRINUSE = (WSABASEERR+48);
WSAEADDRNOTAVAIL = (WSABASEERR+49);
WSAENETDOWN = (WSABASEERR+50);
WSAENETUNREACH = (WSABASEERR+51);
WSAENETRESET = (WSABASEERR+52);
WSAECONNABORTED = (WSABASEERR+53);
WSAECONNRESET = (WSABASEERR+54);
WSAENOBUFS = (WSABASEERR+55);
WSAEISCONN = (WSABASEERR+56);
WSAENOTCONN = (WSABASEERR+57);
WSAESHUTDOWN = (WSABASEERR+58);
WSAETOOMANYREFS = (WSABASEERR+59);
WSAETIMEDOUT = (WSABASEERR+60);
WSAECONNREFUSED = (WSABASEERR+61);
WSAELOOP = (WSABASEERR+62);
WSAENAMETOOLONG = (WSABASEERR+63);
WSAEHOSTDOWN = (WSABASEERR+64);
WSAEHOSTUNREACH = (WSABASEERR+65);
WSAENOTEMPTY = (WSABASEERR+66);
WSAEPROCLIM = (WSABASEERR+67);
WSAEUSERS = (WSABASEERR+68);
WSAEDQUOT = (WSABASEERR+69);
WSAESTALE = (WSABASEERR+70);
WSAEREMOTE = (WSABASEERR+71);
WSAEDISCON = (WSABASEERR+101);
{$ENDIF}
{$IFDEF LINUX}
WSAEWOULDBLOCK = 11;
WSAEINPROGRESS = 115;
WSAEALREADY = 114;
WSAENOTSOCK = 88;
WSAEDESTADDRREQ = 89;
WSAEMSGSIZE = 90;
WSAEPROTOTYPE = 91;
WSAENOPROTOOPT = 92;
WSAEPROTONOSUPPORT = 93;
WSAESOCKTNOSUPPORT = 94;
WSAEOPNOTSUPP = 95;
WSAEPFNOSUPPORT = 96;
WSAEAFNOSUPPORT = 97;
WSAEADDRINUSE = 98;
WSAEADDRNOTAVAIL = 99;
WSAENETDOWN = 100;
WSAENETUNREACH = 101;
WSAENETRESET = 102;
WSAECONNABORTED = 103;
WSAECONNRESET = 104;
WSAENOBUFS = 105;
WSAEISCONN = 106;
WSAENOTCONN = 107;
WSAESHUTDOWN = 108;
WSAETOOMANYREFS = 109;
WSAETIMEDOUT = 110;
WSAECONNREFUSED = 111;
WSAELOOP = 40;
WSAENAMETOOLONG = 36;
WSAEHOSTDOWN = 112;
WSAEHOSTUNREACH = 113;
WSAENOTEMPTY = 39;
WSAEPROCLIM = 00;
WSAEUSERS = 87;
WSAEDQUOT = 122;
WSAESTALE = 116;
WSAEREMOTE = 66;
{$ENDIF}
{ Extended Windows Sockets error constant definitions }
WSASYSNOTREADY = (WSABASEERR+91);
WSAVERNOTSUPPORTED = (WSABASEERR+92);
WSANOTINITIALISED = (WSABASEERR+93);
{ Error return codes from gethostbyname() and gethostbyaddr()
(when using the resolver). Note that these errors are
retrieved via WSAGetLastError() and must therefore follow
the rules for avoiding clashes with error numbers from
specific implementations or language run-time systems.
For this reason the codes are based at WSABASEERR+1001.
Note also that [WSA]NO_ADDRESS is defined only for
compatibility purposes. }
{ Authoritative Answer: Host not found }
WSAHOST_NOT_FOUND = (WSABASEERR+1001);
HOST_NOT_FOUND = WSAHOST_NOT_FOUND;
{ Non-Authoritative: Host not found, or SERVERFAIL }
WSATRY_AGAIN = (WSABASEERR+1002);
TRY_AGAIN = WSATRY_AGAIN;
{ Non recoverable errors, FORMERR, REFUSED, NOTIMP }
WSANO_RECOVERY = (WSABASEERR+1003);
NO_RECOVERY = WSANO_RECOVERY;
{ Valid name, no data record of requested type }
WSANO_DATA = (WSABASEERR+1004);
NO_DATA = WSANO_DATA;
{ no address, look for MX record }
WSANO_ADDRESS = WSANO_DATA;
NO_ADDRESS = WSANO_ADDRESS;
{ Windows Sockets errors redefined as regular Berkeley error constants.
These are commented out in Windows NT to avoid conflicts with errno.h.
Use the WSA constants instead. }
EWOULDBLOCK = WSAEWOULDBLOCK;
EINPROGRESS = WSAEINPROGRESS;
EALREADY = WSAEALREADY;
ENOTSOCK = WSAENOTSOCK;
EDESTADDRREQ = WSAEDESTADDRREQ;
EMSGSIZE = WSAEMSGSIZE;
EPROTOTYPE = WSAEPROTOTYPE;
ENOPROTOOPT = WSAENOPROTOOPT;
EPROTONOSUPPORT = WSAEPROTONOSUPPORT;
ESOCKTNOSUPPORT = WSAESOCKTNOSUPPORT;
EOPNOTSUPP = WSAEOPNOTSUPP;
EPFNOSUPPORT = WSAEPFNOSUPPORT;
EAFNOSUPPORT = WSAEAFNOSUPPORT;
EADDRINUSE = WSAEADDRINUSE;
EADDRNOTAVAIL = WSAEADDRNOTAVAIL;
ENETDOWN = WSAENETDOWN;
ENETUNREACH = WSAENETUNREACH;
ENETRESET = WSAENETRESET;
ECONNABORTED = WSAECONNABORTED;
ECONNRESET = WSAECONNRESET;
ENOBUFS = WSAENOBUFS;
EISCONN = WSAEISCONN;
ENOTCONN = WSAENOTCONN;
ESHUTDOWN = WSAESHUTDOWN;
ETOOMANYREFS = WSAETOOMANYREFS;
ETIMEDOUT = WSAETIMEDOUT;
ECONNREFUSED = WSAECONNREFUSED;
ELOOP = WSAELOOP;
ENAMETOOLONG = WSAENAMETOOLONG;
EHOSTDOWN = WSAEHOSTDOWN;
EHOSTUNREACH = WSAEHOSTUNREACH;
ENOTEMPTY = WSAENOTEMPTY;
EPROCLIM = WSAEPROCLIM;
EUSERS = WSAEUSERS;
EDQUOT = WSAEDQUOT;
ESTALE = WSAESTALE;
EREMOTE = WSAEREMOTE;
SockAddr_Len = 16;
In_Addr_Len = 4;
InAddr_Any = 0;
InAddr_Loopback = $7F000001;
InAddr_Broadcast = $FFFFFFFF;
InAddr_None = $FFFFFFFF;
SOCK_NULL = 0;
SOCK_STREAM = 1; // stream socket
SOCK_DGRAM = 2; // datagram socket
SOCK_RAW = 3; // raw-protocol interface
SOCK_RDM = 4; // reliably-delivered message
SOCK_SEQPACKET = 5; // sequenced packet stream
IPPROTO_NULL = 0;
IPPROTO_UDP = 17;
IPPROTO_TCP = 6;
const
IOCPARM_MASK = $7f;
IOC_VOID = $20000000;
IOC_OUT = $40000000;
IOC_IN = $80000000;
IOC_INOUT = (IOC_IN or IOC_OUT);
{$IFNDEF LINUX}
FIONREAD = IOC_OUT or { get # bytes to read }
((Longint(SizeOf(Longint)) and IOCPARM_MASK) shl 16) or
(Longint(Byte('f')) shl 8) or 127;
FIONBIO = IOC_IN or { set/clear non-blocking i/o }
((Longint(SizeOf(Longint)) and IOCPARM_MASK) shl 16) or
(Longint(Byte('f')) shl 8) or 126;
FIOASYNC = IOC_IN or { set/clear async i/o }
((Longint(SizeOf(Longint)) and IOCPARM_MASK) shl 16) or
(Longint(Byte('f')) shl 8) or 125;
{$ENDIF}
type
pLongInt = ^LongInt;
pIoVec = ^tIoVec;
tIoVec = packed record
iov_base: POINTER;
iov_len: LongInt;
end;
(*
** Structure used for manipulating linger option.
*)
tLinger = packed record
l_onoff: LongInt; // option on/off
l_linger: LongInt; // linger time
END;
(*
** Structure used by kernel to pass protocol
** information in raw sockets.
*)
tSockProto = packed record
sp_family: WORD; // address family
sp_protocol: WORD; // protocol
END;
off_t = LongInt;
tuio = packed record
uio_iov: pIoVec;
uio_iovcnt: LongInt;
uio_offset: off_t;
uio_segflg: LongInt;
uio_resid: LongInt;
END;
pIn_Addr = ^tIn_Addr;
tIn_Addr = packed record
case integer of
0: (IPAddr: ULong);
1: (ClassA: byte;
ClassB: byte;
ClassC: byte;
ClassD: byte)
end;
(*
** Structure used by kernel to store most
** addresses.
*)
pSockAddr=^tSockAddr;
tSockAddr=packed record
case integer of
0: (Sin_Family: SmallWord;
Sin_Port: SmallWord;
Sin_Addr: tIn_Addr;
Sin_Zero: array[1.. 8] of byte);
1: (Sa_Family: SmallWord;
Sa_Addr: array[1..14] of byte);
end;
(*
** Message header for recvmsg and sendmsg calls.
*)
pMsgHdr = ^tMsgHdr;
tMsgHdr = packed record
msg_name: pChar; // optional address
msg_namelen: LongInt; // size of address
msg_iov: pIoVec; // scatter/gather array
msg_iovlen: LongInt; // # elements in msg_iov
msg_accrights: pChar; // access rights sent/received
msg_accrightslen: LongInt;
END;
uio_rw = ( UIO_READ, UIO_WRITE );
pHostEnt = ^tHostEnt;
tHostEnt = packed record
H_Name: ^string;
H_Alias: pointer;
{$IFNDEF WIN32}
H_AddrType: longint;
H_Length: longint;
{$ELSE}
h_addrtype: Smallint;
h_length: Smallint;
{$ENDIF}
H_Addr_List: ^pIn_Addr;
END;
pProtoEnt = ^tProtoEnt;
TProtoEnt = packed record
p_name: pChar; (* official protocol name *)
p_aliases: ^pChar; (* alias list *)
p_proto: SmallInt; (* protocol # *)
end;
pServEnt = ^tServEnt;
tServEnt = packed record
s_name: pChar; // official service name
s_aliases: ^pChar; // alias list
s_port: SmallInt; // port #
s_proto: pChar; // protocol to use
END;
// these types are only used in windows version
const
FD_SETSIZE = 64;
type
PFDSet = ^TFDSet;
TFDSet = packed record
fd_count: ULONG;
fd_array: array[0..FD_SETSIZE-1] of ULONG;
end;
PTimeVal = ^TTimeVal;
TTimeVal = packed record
tv_sec: Longint;
tv_usec: Longint;
end;
const
WSADESCRIPTION_LEN = 256;
WSASYS_STATUS_LEN = 128;
type
PWSAData = ^TWSAData;
TWSAData = packed record
wVersion: Word;
wHighVersion: Word;
szDescription: array[0..WSADESCRIPTION_LEN] of Char;
szSystemStatus: array[0..WSASYS_STATUS_LEN] of Char;
iMaxSockets: Word;
iMaxUdpDg: Word;
lpVendorInfo: PChar;
end;
(*
** The re-defination of error constants are necessary to avoid conflict with
** standard IBM C Set/2 V1.0 error constants.
**
** All OS/2 SOCKET API error constants are biased by SOCBASEERR from the "normal"
**
*)
const
SOCBASEERR = 10000;
(*
** OS/2 SOCKET API definitions of regular Microsoft C 6.0 error constants
*)
const
SOCEPERM = (SOCBASEERR+1); (* Not owner *)
SOCESRCH = (SOCBASEERR+3); (* No such process *)
SOCEINTR = (SOCBASEERR+4); (* Interrupted system call *)
SOCENXIO = (SOCBASEERR+6); (* No such device or address *)
SOCEBADF = (SOCBASEERR+9); (* Bad file number *)
SOCEACCES = (SOCBASEERR+13); (* Permission denied *)
SOCEFAULT = (SOCBASEERR+14); (* Bad address *)
SOCEINVAL = (SOCBASEERR+22); (* Invalid argument *)
SOCEMFILE = (SOCBASEERR+24); (* Too many open files *)
SOCEPIPE = (SOCBASEERR+32); (* Broken pipe *)
SOCEOS2ERR = (SOCBASEERR+100); (* OS/2 Error *)
(*
** OS/2 SOCKET API definitions of regular BSD error constants
*)
const
SOCEWOULDBLOCK = (SOCBASEERR+35); (* Operation would block *)
SOCEINPROGRESS = (SOCBASEERR+36); (* Operation now in progress *)
SOCEALREADY = (SOCBASEERR+37); (* Operation already in progress *)
SOCENOTSOCK = (SOCBASEERR+38); (* Socket operation on non-socket *)
SOCEDESTADDRREQ = (SOCBASEERR+39); (* Destination address required *)
SOCEMSGSIZE = (SOCBASEERR+40); (* Message too long *)
SOCEPROTOTYPE = (SOCBASEERR+41); (* Protocol wrong type for socket *)
SOCENOPROTOOPT = (SOCBASEERR+42); (* Protocol not available *)
SOCEPROTONOSUPPORT = (SOCBASEERR+43); (* Protocol not supported *)
SOCESOCKTNOSUPPORT = (SOCBASEERR+44); (* Socket type not supported *)
SOCEOPNOTSUPP = (SOCBASEERR+45); (* Operation not supported on socket *)
SOCEPFNOSUPPORT = (SOCBASEERR+46); (* Protocol family not supported *)
SOCEAFNOSUPPORT = (SOCBASEERR+47); (* Address family not supported by protocol family *)
SOCEADDRINUSE = (SOCBASEERR+48); (* Address already in use *)
SOCEADDRNOTAVAIL = (SOCBASEERR+49); (* Can't assign requested address *)
SOCENETDOWN = (SOCBASEERR+50); (* Network is down *)
SOCENETUNREACH = (SOCBASEERR+51); (* Network is unreachable *)
SOCENETRESET = (SOCBASEERR+52); (* Network dropped connection on reset *)
SOCECONNABORTED = (SOCBASEERR+53); (* Software caused connection abort *)
SOCECONNRESET = (SOCBASEERR+54); (* Connection reset by peer *)
SOCENOBUFS = (SOCBASEERR+55); (* No buffer space available *)
SOCEISCONN = (SOCBASEERR+56); (* Socket is already connected *)
SOCENOTCONN = (SOCBASEERR+57); (* Socket is not connected *)
SOCESHUTDOWN = (SOCBASEERR+58); (* Can't send after socket shutdown *)
SOCETOOMANYREFS = (SOCBASEERR+59); (* Too many references: can't splice *)
SOCETIMEDOUT = (SOCBASEERR+60); (* Connection timed out *)
SOCECONNREFUSED = (SOCBASEERR+61); (* Connection refused *)
SOCELOOP = (SOCBASEERR+62); (* Too many levels of symbolic links *)
SOCENAMETOOLONG = (SOCBASEERR+63); (* File name too long *)
SOCEHOSTDOWN = (SOCBASEERR+64); (* Host is down *)
SOCEHOSTUNREACH = (SOCBASEERR+65); (* No route to host *)
SOCENOTEMPTY = (SOCBASEERR+66); (* Directory not empty *)
(*
** OS/2 SOCKET API errors redefined as regular BSD error constants
*)
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IMPLEMENTATION
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end. { unit SockDef }