{==============================================================================|
| Project : Ararat Synapse | 002.000.009 |
|==============================================================================|
| Content: Socket Independent Platform Layer - Linux definition include |
|==============================================================================|
| Copyright (c)1999-2010, Lukas Gebauer |
| All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions are met: |
| |
| Redistributions of source code must retain the above copyright notice, this |
| list of conditions and the following disclaimer. |
| |
| Redistributions in binary form must reproduce the above copyright notice, |
| this list of conditions and the following disclaimer in the documentation |
| and/or other materials provided with the distribution. |
| |
| Neither the name of Lukas Gebauer nor the names of its contributors may |
| be used to endorse or promote products derived from this software without |
| specific prior written permission. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR |
| ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
| DAMAGE. |
|==============================================================================|
| The Initial Developer of the Original Code is Lukas Gebauer (Czech Republic).|
| Portions created by Lukas Gebauer are Copyright (c)2003-2010. |
| All Rights Reserved. |
|==============================================================================|
| Contributor(s): |
|==============================================================================|
| History: see HISTORY.HTM from distribution package |
| (Found at URL: http://www.ararat.cz/synapse/) |
|==============================================================================}
{:@exclude}
{$IFDEF LINUX}
//{$DEFINE FORCEOLDAPI}
{Note about define FORCEOLDAPI:
If you activate this compiler directive, then is allways used old socket API
for name resolution. If you leave this directive inactive, then the new API
is used, when running system allows it.
For IPv6 support you must have new API!
}
{$IFDEF FPC}
{$MODE DELPHI}
{$ENDIF}
{$H+}
interface
uses
SyncObjs, SysUtils, Classes,
synafpc,
Libc;
function InitSocketInterface(stack: string): Boolean;
function DestroySocketInterface: Boolean;
const
WinsockLevel = $0202;
type
u_char = Char;
u_short = Word;
u_int = Integer;
u_long = Longint;
pu_long = ^u_long;
pu_short = ^u_short;
TSocket = u_int;
TAddrFamily = integer;
TMemory = pointer;
const
DLLStackName = 'libc.so.6';
cLocalhost = '127.0.0.1';
cAnyHost = '0.0.0.0';
cBroadcast = '255.255.255.255';
c6Localhost = '::1';
c6AnyHost = '::0';
c6Broadcast = 'ffff::1';
cAnyPort = '0';
type
DWORD = Integer;
__fd_mask = LongWord;
const
__FD_SETSIZE = 1024;
__NFDBITS = 8 * sizeof(__fd_mask);
type
__fd_set = {packed} record
fds_bits: packed array[0..(__FD_SETSIZE div __NFDBITS)-1] of __fd_mask;
end;
TFDSet = __fd_set;
PFDSet = ^TFDSet;
const
FIONREAD = $541B;
FIONBIO = $5421;
FIOASYNC = $5452;
type
PTimeVal = ^TTimeVal;
TTimeVal = packed record
tv_sec: Longint;
tv_usec: Longint;
end;
const
IPPROTO_IP = 0; { Dummy }
IPPROTO_ICMP = 1; { Internet Control Message Protocol }
IPPROTO_IGMP = 2; { Internet Group Management Protocol}
IPPROTO_TCP = 6; { TCP }
IPPROTO_UDP = 17; { User Datagram Protocol }
IPPROTO_IPV6 = 41;
IPPROTO_ICMPV6 = 58;
IPPROTO_RM = 113;
IPPROTO_RAW = 255;
IPPROTO_MAX = 256;
type
PInAddr = ^TInAddr;
TInAddr = packed record
case integer of
0: (S_bytes: packed array [0..3] of byte);
1: (S_addr: u_long);
end;
PSockAddrIn = ^TSockAddrIn;
TSockAddrIn = packed record
case Integer of
0: (sin_family: u_short;
sin_port: u_short;
sin_addr: TInAddr;
sin_zero: array[0..7] of Char);
1: (sa_family: u_short;
sa_data: array[0..13] of Char)
end;
TIP_mreq = record
imr_multiaddr: TInAddr; { IP multicast address of group }
imr_interface: TInAddr; { local IP address of interface }
end;
PInAddr6 = ^TInAddr6;
TInAddr6 = packed record
case integer of
0: (S6_addr: packed array [0..15] of byte);
1: (u6_addr8: packed array [0..15] of byte);
2: (u6_addr16: packed array [0..7] of word);
3: (u6_addr32: packed array [0..3] of integer);
end;
PSockAddrIn6 = ^TSockAddrIn6;
TSockAddrIn6 = packed record
sin6_family: u_short; // AF_INET6
sin6_port: u_short; // Transport level port number
sin6_flowinfo: u_long; // IPv6 flow information
sin6_addr: TInAddr6; // IPv6 address
sin6_scope_id: u_long; // Scope Id: IF number for link-local
// SITE id for site-local
end;
TIPv6_mreq = record
ipv6mr_multiaddr: TInAddr6; // IPv6 multicast address.
ipv6mr_interface: integer; // Interface index.
padding: u_long;
end;
PHostEnt = ^THostEnt;
THostent = record
h_name: PChar;
h_aliases: PPChar;
h_addrtype: Integer;
h_length: Cardinal;
case Byte of
0: (h_addr_list: PPChar);
1: (h_addr: PPChar);
end;
PNetEnt = ^TNetEnt;
TNetEnt = record
n_name: PChar;
n_aliases: PPChar;
n_addrtype: Integer;
n_net: uint32_t;
end;
PServEnt = ^TServEnt;
TServEnt = record
s_name: PChar;
s_aliases: PPChar;
s_port: Integer;
s_proto: PChar;
end;
PProtoEnt = ^TProtoEnt;
TProtoEnt = record
p_name: PChar;
p_aliases: ^PChar;
p_proto: u_short;
end;
const
INADDR_ANY = $00000000;
INADDR_LOOPBACK = $7F000001;
INADDR_BROADCAST = $FFFFFFFF;
INADDR_NONE = $FFFFFFFF;
ADDR_ANY = INADDR_ANY;
INVALID_SOCKET = TSocket(NOT(0));
SOCKET_ERROR = -1;
Const
IP_TOS = 1; { int; IP type of service and precedence. }
IP_TTL = 2; { int; IP time to live. }
IP_HDRINCL = 3; { int; Header is included with data. }
IP_OPTIONS = 4; { ip_opts; IP per-packet options. }
IP_ROUTER_ALERT = 5; { bool }
IP_RECVOPTS = 6; { bool }
IP_RETOPTS = 7; { bool }
IP_PKTINFO = 8; { bool }
IP_PKTOPTIONS = 9;
IP_PMTUDISC = 10; { obsolete name? }
IP_MTU_DISCOVER = 10; { int; see below }
IP_RECVERR = 11; { bool }
IP_RECVTTL = 12; { bool }
IP_RECVTOS = 13; { bool }
IP_MULTICAST_IF = 32; { in_addr; set/get IP multicast i/f }
IP_MULTICAST_TTL = 33; { u_char; set/get IP multicast ttl }
IP_MULTICAST_LOOP = 34; { i_char; set/get IP multicast loopback }
IP_ADD_MEMBERSHIP = 35; { ip_mreq; add an IP group membership }
IP_DROP_MEMBERSHIP = 36; { ip_mreq; drop an IP group membership }
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;
SO_REUSEPORT = 15;
SO_PASSCRED = 16;
SO_PEERCRED = 17;
SO_RCVLOWAT = 18;
SO_SNDLOWAT = 19;
SO_RCVTIMEO = 20;
SO_SNDTIMEO = 21;
{ Security levels - as per NRL IPv6 - don't actually do anything }
SO_SECURITY_AUTHENTICATION = 22;
SO_SECURITY_ENCRYPTION_TRANSPORT = 23;
SO_SECURITY_ENCRYPTION_NETWORK = 24;
SO_BINDTODEVICE = 25;
{ Socket filtering }
SO_ATTACH_FILTER = 26;
SO_DETACH_FILTER = 27;
SOMAXCONN = 128;
IPV6_UNICAST_HOPS = 16;
IPV6_MULTICAST_IF = 17;
IPV6_MULTICAST_HOPS = 18;
IPV6_MULTICAST_LOOP = 19;
IPV6_JOIN_GROUP = 20;
IPV6_LEAVE_GROUP = 21;
MSG_NOSIGNAL = $4000; // Do not generate SIGPIPE.
// getnameinfo constants
NI_MAXHOST = 1025;
NI_MAXSERV = 32;
NI_NOFQDN = $4;
NI_NUMERICHOST = $1;
NI_NAMEREQD = $8;
NI_NUMERICSERV = $2;
NI_DGRAM = $10;
const
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 }
{ TCP options. }
TCP_NODELAY = $0001;
{ Address families. }
AF_UNSPEC = 0; { unspecified }
AF_INET = 2; { internetwork: UDP, TCP, etc. }
AF_INET6 = 10; { Internetwork Version 6 }
AF_MAX = 24;
{ Protocol families, same as address families for now. }
PF_UNSPEC = AF_UNSPEC;
PF_INET = AF_INET;
PF_INET6 = AF_INET6;
PF_MAX = AF_MAX;
type
{ Structure used by kernel to store most addresses. }
PSockAddr = ^TSockAddr;
TSockAddr = TSockAddrIn;
{ Structure used by kernel to pass protocol information in raw sockets. }
PSockProto = ^TSockProto;
TSockProto = packed record
sp_family: u_short;
sp_protocol: u_short;
end;
type
PAddrInfo = ^TAddrInfo;
TAddrInfo = record
ai_flags: integer; // AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST.
ai_family: integer; // PF_xxx.
ai_socktype: integer; // SOCK_xxx.
ai_protocol: integer; // 0 or IPPROTO_xxx for IPv4 and IPv6.
ai_addrlen: u_int; // Length of ai_addr.
ai_addr: PSockAddr; // Binary address.
ai_canonname: PChar; // Canonical name for nodename.
ai_next: PAddrInfo; // Next structure in linked list.
end;
const
// Flags used in "hints" argument to getaddrinfo().
AI_PASSIVE = $1; // Socket address will be used in bind() call.
AI_CANONNAME = $2; // Return canonical name in first ai_canonname.
AI_NUMERICHOST = $4; // Nodename must be a numeric address string.
type
{ Structure used for manipulating linger option. }
PLinger = ^TLinger;
TLinger = packed record
l_onoff: integer;
l_linger: integer;
end;
const
MSG_OOB = $01; // Process out-of-band data.
MSG_PEEK = $02; // Peek at incoming messages.
const
WSAEINTR = EINTR;
WSAEBADF = EBADF;
WSAEACCES = EACCES;
WSAEFAULT = EFAULT;
WSAEINVAL = EINVAL;
WSAEMFILE = EMFILE;
WSAEWOULDBLOCK = EWOULDBLOCK;
WSAEINPROGRESS = EINPROGRESS;
WSAEALREADY = EALREADY;
WSAENOTSOCK = ENOTSOCK;
WSAEDESTADDRREQ = EDESTADDRREQ;
WSAEMSGSIZE = EMSGSIZE;
WSAEPROTOTYPE = EPROTOTYPE;
WSAENOPROTOOPT = ENOPROTOOPT;
WSAEPROTONOSUPPORT = EPROTONOSUPPORT;
WSAESOCKTNOSUPPORT = ESOCKTNOSUPPORT;
WSAEOPNOTSUPP = EOPNOTSUPP;
WSAEPFNOSUPPORT = EPFNOSUPPORT;
WSAEAFNOSUPPORT = EAFNOSUPPORT;
WSAEADDRINUSE = EADDRINUSE;
WSAEADDRNOTAVAIL = EADDRNOTAVAIL;
WSAENETDOWN = ENETDOWN;
WSAENETUNREACH = ENETUNREACH;
WSAENETRESET = ENETRESET;
WSAECONNABORTED = ECONNABORTED;
WSAECONNRESET = ECONNRESET;
WSAENOBUFS = ENOBUFS;
WSAEISCONN = EISCONN;
WSAENOTCONN = ENOTCONN;
WSAESHUTDOWN = ESHUTDOWN;
WSAETOOMANYREFS = ETOOMANYREFS;
WSAETIMEDOUT = ETIMEDOUT;
WSAECONNREFUSED = ECONNREFUSED;
WSAELOOP = ELOOP;
WSAENAMETOOLONG = ENAMETOOLONG;
WSAEHOSTDOWN = EHOSTDOWN;
WSAEHOSTUNREACH = EHOSTUNREACH;
WSAENOTEMPTY = ENOTEMPTY;
WSAEPROCLIM = -1;
WSAEUSERS = EUSERS;
WSAEDQUOT = EDQUOT;
WSAESTALE = ESTALE;
WSAEREMOTE = EREMOTE;
WSASYSNOTREADY = -2;
WSAVERNOTSUPPORTED = -3;
WSANOTINITIALISED = -4;
WSAEDISCON = -5;
WSAHOST_NOT_FOUND = HOST_NOT_FOUND;
WSATRY_AGAIN = TRY_AGAIN;
WSANO_RECOVERY = NO_RECOVERY;
WSANO_DATA = -6;
EAI_BADFLAGS = -1; { Invalid value for `ai_flags' field. }
EAI_NONAME = -2; { NAME or SERVICE is unknown. }
EAI_AGAIN = -3; { Temporary failure in name resolution. }
EAI_FAIL = -4; { Non-recoverable failure in name res. }
EAI_NODATA = -5; { No address associated with NAME. }
EAI_FAMILY = -6; { `ai_family' not supported. }
EAI_SOCKTYPE = -7; { `ai_socktype' not supported. }
EAI_SERVICE = -8; { SERVICE not supported for `ai_socktype'. }
EAI_ADDRFAMILY = -9; { Address family for NAME not supported. }
EAI_MEMORY = -10; { Memory allocation failure. }
EAI_SYSTEM = -11; { System error returned in `errno'. }
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;
function IN6_IS_ADDR_UNSPECIFIED(const a: PInAddr6): boolean;
function IN6_IS_ADDR_LOOPBACK(const a: PInAddr6): boolean;
function IN6_IS_ADDR_LINKLOCAL(const a: PInAddr6): boolean;
function IN6_IS_ADDR_SITELOCAL(const a: PInAddr6): boolean;
function IN6_IS_ADDR_MULTICAST(const a: PInAddr6): boolean;
function IN6_ADDR_EQUAL(const a: PInAddr6; const b: PInAddr6):boolean;
procedure SET_IN6_IF_ADDR_ANY (const a: PInAddr6);
procedure SET_LOOPBACK_ADDR6 (const a: PInAddr6);
var
in6addr_any, in6addr_loopback : TInAddr6;
procedure FD_CLR(Socket: TSocket; var FDSet: TFDSet);
function FD_ISSET(Socket: TSocket; var FDSet: TFDSet): Boolean;
procedure FD_SET(Socket: TSocket; var FDSet: TFDSet);
procedure FD_ZERO(var FDSet: TFDSet);
{=============================================================================}
type
TWSAStartup = function(wVersionRequired: Word; var WSData: TWSAData): Integer;
cdecl;
TWSACleanup = function: Integer;
cdecl;
TWSAGetLastError = function: Integer;
cdecl;
TGetServByName = function(name, proto: PChar): PServEnt;
cdecl;
TGetServByPort = function(port: Integer; proto: PChar): PServEnt;
cdecl;
TGetProtoByName = function(name: PChar): PProtoEnt;
cdecl;
TGetProtoByNumber = function(proto: Integer): PProtoEnt;
cdecl;
TGetHostByName = function(name: PChar): PHostEnt;
cdecl;
TGetHostByAddr = function(addr: Pointer; len, Struc: Integer): PHostEnt;
cdecl;
TGetHostName = function(name: PChar; len: Integer): Integer;
cdecl;
TShutdown = function(s: TSocket; how: Integer): Integer;
cdecl;
TSetSockOpt = function(s: TSocket; level, optname: Integer; optval: PChar;
optlen: Integer): Integer;
cdecl;
TGetSockOpt = function(s: TSocket; level, optname: Integer; optval: PChar;
var optlen: Integer): Integer;
cdecl;
TSendTo = function(s: TSocket; const Buf; len, flags: Integer; addrto: PSockAddr;
tolen: Integer): Integer;
cdecl;
TSend = function(s: TSocket; const Buf; len, flags: Integer): Integer;
cdecl;
TRecv = function(s: TSocket; var Buf; len, flags: Integer): Integer;
cdecl;
TRecvFrom = function(s: TSocket; var Buf; len, flags: Integer; from: PSockAddr;
var fromlen: Integer): Integer;
cdecl;
Tntohs = function(netshort: u_short): u_short;
cdecl;
Tntohl = function(netlong: u_long): u_long;
cdecl;
TListen = function(s: TSocket; backlog: Integer): Integer;
cdecl;
TIoctlSocket = function(s: TSocket; cmd: DWORD; var arg: integer): Integer;
cdecl;
TInet_ntoa = function(inaddr: TInAddr): PChar;
cdecl;
TInet_addr = function(cp: PChar): u_long;
cdecl;
Thtons = function(hostshort: u_short): u_short;
cdecl;
Thtonl = function(hostlong: u_long): u_long;
cdecl;
TGetSockName = function(s: TSocket; name: PSockAddr; var namelen: Integer): Integer;
cdecl;
TGetPeerName = function(s: TSocket; name: PSockAddr; var namelen: Integer): Integer;
cdecl;
TConnect = function(s: TSocket; name: PSockAddr; namelen: Integer): Integer;
cdecl;
TCloseSocket = function(s: TSocket): Integer;
cdecl;
TBind = function(s: TSocket; addr: PSockAddr; namelen: Integer): Integer;
cdecl;
TAccept = function(s: TSocket; addr: PSockAddr; var addrlen: Integer): TSocket;
cdecl;
TTSocket = function(af, Struc, Protocol: Integer): TSocket;
cdecl;
TSelect = function(nfds: Integer; readfds, writefds, exceptfds: PFDSet;
timeout: PTimeVal): Longint;
cdecl;
TGetAddrInfo = function(NodeName: PChar; ServName: PChar; Hints: PAddrInfo;
var Addrinfo: PAddrInfo): integer;
cdecl;
TFreeAddrInfo = procedure(ai: PAddrInfo);
cdecl;
TGetNameInfo = function( addr: PSockAddr; namelen: Integer; host: PChar;
hostlen: DWORD; serv: PChar; servlen: DWORD; flags: integer): integer;
cdecl;
var
WSAStartup: TWSAStartup = nil;
WSACleanup: TWSACleanup = nil;
WSAGetLastError: TWSAGetLastError = nil;
GetServByName: TGetServByName = nil;
GetServByPort: TGetServByPort = nil;
GetProtoByName: TGetProtoByName = nil;
GetProtoByNumber: TGetProtoByNumber = nil;
GetHostByName: TGetHostByName = nil;
GetHostByAddr: TGetHostByAddr = nil;
ssGetHostName: TGetHostName = nil;
Shutdown: TShutdown = nil;
SetSockOpt: TSetSockOpt = nil;
GetSockOpt: TGetSockOpt = nil;
ssSendTo: TSendTo = nil;
ssSend: TSend = nil;
ssRecv: TRecv = nil;
ssRecvFrom: TRecvFrom = nil;
ntohs: Tntohs = nil;
ntohl: Tntohl = nil;
Listen: TListen = nil;
IoctlSocket: TIoctlSocket = nil;
Inet_ntoa: TInet_ntoa = nil;
Inet_addr: TInet_addr = nil;
htons: Thtons = nil;
htonl: Thtonl = nil;
ssGetSockName: TGetSockName = nil;
ssGetPeerName: TGetPeerName = nil;
ssConnect: TConnect = nil;
CloseSocket: TCloseSocket = nil;
ssBind: TBind = nil;
ssAccept: TAccept = nil;
Socket: TTSocket = nil;
Select: TSelect = nil;
GetAddrInfo: TGetAddrInfo = nil;
FreeAddrInfo: TFreeAddrInfo = nil;
GetNameInfo: TGetNameInfo = nil;
function LSWSAStartup(wVersionRequired: Word; var WSData: TWSAData): Integer; cdecl;
function LSWSACleanup: Integer; cdecl;
function LSWSAGetLastError: Integer; cdecl;
var
SynSockCS: SyncObjs.TCriticalSection;
SockEnhancedApi: Boolean;
SockWship6Api: Boolean;
type
TVarSin = packed record
case integer of
0: (AddressFamily: u_short);
1: (
case sin_family: u_short of
AF_INET: (sin_port: u_short;
sin_addr: TInAddr;
sin_zero: array[0..7] of Char);
AF_INET6: (sin6_port: u_short;
sin6_flowinfo: u_long;
sin6_addr: TInAddr6;
sin6_scope_id: u_long);
);
end;
function SizeOfVarSin(sin: TVarSin): integer;
function Bind(s: TSocket; const addr: TVarSin): Integer;
function Connect(s: TSocket; const name: TVarSin): Integer;
function GetSockName(s: TSocket; var name: TVarSin): Integer;
function GetPeerName(s: TSocket; var name: TVarSin): Integer;
function GetHostName: string;
function Send(s: TSocket; Buf: TMemory; len, flags: Integer): Integer;
function Recv(s: TSocket; Buf: TMemory; len, flags: Integer): Integer;
function SendTo(s: TSocket; Buf: TMemory; len, flags: Integer; addrto: TVarSin): Integer;
function RecvFrom(s: TSocket; Buf: TMemory; len, flags: Integer; var from: TVarSin): Integer;
function Accept(s: TSocket; var addr: TVarSin): TSocket;
function IsNewApi(Family: integer): Boolean;
function SetVarSin(var Sin: TVarSin; IP, Port: string; Family, SockProtocol, SockType: integer; PreferIP4: Boolean): integer;
function GetSinIP(Sin: TVarSin): string;
function GetSinPort(Sin: TVarSin): Integer;
procedure ResolveNameToIP(Name: string; Family, SockProtocol, SockType: integer; const IPList: TStrings);
function ResolveIPToName(IP: string; Family, SockProtocol, SockType: integer): string;
function ResolvePort(Port: string; Family, SockProtocol, SockType: integer): Word;
{==============================================================================}
implementation
var
SynSockCount: Integer = 0;
LibHandle: TLibHandle = 0;
Libwship6Handle: TLibHandle = 0;
function IN6_IS_ADDR_UNSPECIFIED(const a: PInAddr6): boolean;
begin
Result := ((a^.u6_addr32[0] = 0) and (a^.u6_addr32[1] = 0) and
(a^.u6_addr32[2] = 0) and (a^.u6_addr32[3] = 0));
end;
function IN6_IS_ADDR_LOOPBACK(const a: PInAddr6): boolean;
begin
Result := ((a^.u6_addr32[0] = 0) and (a^.u6_addr32[1] = 0) and
(a^.u6_addr32[2] = 0) and
(a^.u6_addr8[12] = 0) and (a^.u6_addr8[13] = 0) and
(a^.u6_addr8[14] = 0) and (a^.u6_addr8[15] = 1));
end;
function IN6_IS_ADDR_LINKLOCAL(const a: PInAddr6): boolean;
begin
Result := ((a^.u6_addr8[0] = $FE) and (a^.u6_addr8[1] = $80));
end;
function IN6_IS_ADDR_SITELOCAL(const a: PInAddr6): boolean;
begin
Result := ((a^.u6_addr8[0] = $FE) and (a^.u6_addr8[1] = $C0));
end;
function IN6_IS_ADDR_MULTICAST(const a: PInAddr6): boolean;
begin
Result := (a^.u6_addr8[0] = $FF);
end;
function IN6_ADDR_EQUAL(const a: PInAddr6; const b: PInAddr6): boolean;
begin
Result := (CompareMem( a, b, sizeof(TInAddr6)));
end;
procedure SET_IN6_IF_ADDR_ANY (const a: PInAddr6);
begin
FillChar(a^, sizeof(TInAddr6), 0);
end;
procedure SET_LOOPBACK_ADDR6 (const a: PInAddr6);
begin
FillChar(a^, sizeof(TInAddr6), 0);
a^.u6_addr8[15] := 1;
end;
{=============================================================================}
var
{$IFNDEF VER1_0} //FTP version 1.0.x
errno_loc: function: PInteger cdecl = nil;
{$ELSE}
errno_loc: function: PInteger = nil; cdecl;
{$ENDIF}
function LSWSAStartup(wVersionRequired: Word; var WSData: TWSAData): Integer;
begin
with WSData do
begin
wVersion := wVersionRequired;
wHighVersion := $202;
szDescription := 'Synsock - Synapse Platform Independent Socket Layer';
szSystemStatus := 'Running on Linux';
iMaxSockets := 32768;
iMaxUdpDg := 8192;
end;
Result := 0;
end;
function LSWSACleanup: Integer;
begin
Result := 0;
end;
function LSWSAGetLastError: Integer;
var
p: PInteger;
begin
p := errno_loc;
Result := p^;
end;
function __FDELT(Socket: TSocket): Integer;
begin
Result := Socket div __NFDBITS;
end;
function __FDMASK(Socket: TSocket): __fd_mask;
begin
Result := LongWord(1) shl (Socket mod __NFDBITS);
end;
function FD_ISSET(Socket: TSocket; var fdset: TFDSet): Boolean;
begin
Result := (fdset.fds_bits[__FDELT(Socket)] and __FDMASK(Socket)) <> 0;
end;
procedure FD_SET(Socket: TSocket; var fdset: TFDSet);
begin
fdset.fds_bits[__FDELT(Socket)] := fdset.fds_bits[__FDELT(Socket)] or __FDMASK(Socket);
end;
procedure FD_CLR(Socket: TSocket; var fdset: TFDSet);
begin
fdset.fds_bits[__FDELT(Socket)] := fdset.fds_bits[__FDELT(Socket)] and (not __FDMASK(Socket));
end;
procedure FD_ZERO(var fdset: TFDSet);
var
I: Integer;
begin
with fdset do
for I := Low(fds_bits) to High(fds_bits) do
fds_bits[I] := 0;
end;
{=============================================================================}
function SizeOfVarSin(sin: TVarSin): integer;
begin
case sin.sin_family of
AF_INET:
Result := SizeOf(TSockAddrIn);
AF_INET6:
Result := SizeOf(TSockAddrIn6);
else
Result := 0;
end;
end;
{=============================================================================}
function Bind(s: TSocket; const addr: TVarSin): Integer;
begin
Result := ssBind(s, @addr, SizeOfVarSin(addr));
end;
function Connect(s: TSocket; const name: TVarSin): Integer;
begin
Result := ssConnect(s, @name, SizeOfVarSin(name));
end;
function GetSockName(s: TSocket; var name: TVarSin): Integer;
var
len: integer;
begin
len := SizeOf(name);
FillChar(name, len, 0);
Result := ssGetSockName(s, @name, Len);
end;
function GetPeerName(s: TSocket; var name: TVarSin): Integer;
var
len: integer;
begin
len := SizeOf(name);
FillChar(name, len, 0);
Result := ssGetPeerName(s, @name, Len);
end;
function GetHostName: string;
var
s: string;
begin
Result := '';
setlength(s, 255);
ssGetHostName(pchar(s), Length(s) - 1);
Result := Pchar(s);
end;
function Send(s: TSocket; Buf: TMemory; len, flags: Integer): Integer;
begin
Result := ssSend(s, Buf^, len, flags);
end;
function Recv(s: TSocket; Buf: TMemory; len, flags: Integer): Integer;
begin
Result := ssRecv(s, Buf^, len, flags);
end;
function SendTo(s: TSocket; Buf: TMemory; len, flags: Integer; addrto: TVarSin): Integer;
begin
Result := ssSendTo(s, Buf^, len, flags, @addrto, SizeOfVarSin(addrto));
end;
function RecvFrom(s: TSocket; Buf: TMemory; len, flags: Integer; var from: TVarSin): Integer;
var
x: integer;
begin
x := SizeOf(from);
Result := ssRecvFrom(s, Buf^, len, flags, @from, x);
end;
function Accept(s: TSocket; var addr: TVarSin): TSocket;
var
x: integer;
begin
x := SizeOf(addr);
Result := ssAccept(s, @addr, x);
end;
{=============================================================================}
function IsNewApi(Family: integer): Boolean;
begin
Result := SockEnhancedApi;
if not Result then
Result := (Family = AF_INET6) and SockWship6Api;
end;
function SetVarSin(var Sin: TVarSin; IP, Port: string; Family, SockProtocol, SockType: integer; PreferIP4: Boolean): integer;
type
pu_long = ^u_long;
var
ProtoEnt: PProtoEnt;
ServEnt: PServEnt;
HostEnt: PHostEnt;
r: integer;
Hints1, Hints2: TAddrInfo;
Sin1, Sin2: TVarSin;
TwoPass: boolean;
function GetAddr(const IP, port: string; Hints: TAddrInfo; var Sin: TVarSin): integer;
var
Addr: PAddrInfo;
begin
Addr := nil;
try
FillChar(Sin, Sizeof(Sin), 0);
if Hints.ai_socktype = SOCK_RAW then
begin
Hints.ai_socktype := 0;
Hints.ai_protocol := 0;
Result := synsock.GetAddrInfo(PChar(IP), nil, @Hints, Addr);
end
else
begin
if (IP = cAnyHost) or (IP = c6AnyHost) then
begin
Hints.ai_flags := AI_PASSIVE;
Result := synsock.GetAddrInfo(nil, PChar(Port), @Hints, Addr);
end
else
if (IP = cLocalhost) or (IP = c6Localhost) then
begin
Result := synsock.GetAddrInfo(nil, PChar(Port), @Hints, Addr);
end
else
begin
Result := synsock.GetAddrInfo(PChar(IP), PChar(Port), @Hints, Addr);
end;
end;
if Result = 0 then
if (Addr <> nil) then
Move(Addr^.ai_addr^, Sin, Addr^.ai_addrlen);
finally
if Assigned(Addr) then
synsock.FreeAddrInfo(Addr);
end;
end;
begin
Result := 0;
FillChar(Sin, Sizeof(Sin), 0);
if not IsNewApi(family) then
begin
SynSockCS.Enter;
try
Sin.sin_family := AF_INET;
ProtoEnt := synsock.GetProtoByNumber(SockProtocol);
ServEnt := nil;
if ProtoEnt <> nil then
ServEnt := synsock.GetServByName(PChar(Port), ProtoEnt^.p_name);
if ServEnt = nil then
Sin.sin_port := synsock.htons(StrToIntDef(Port, 0))
else
Sin.sin_port := ServEnt^.s_port;
if IP = cBroadcast then
Sin.sin_addr.s_addr := u_long(INADDR_BROADCAST)
else
begin
Sin.sin_addr.s_addr := synsock.inet_addr(PChar(IP));
if Sin.sin_addr.s_addr = u_long(INADDR_NONE) then
begin
HostEnt := synsock.GetHostByName(PChar(IP));
Result := synsock.WSAGetLastError;
if HostEnt <> nil then
Sin.sin_addr.S_addr := u_long(Pu_long(HostEnt^.h_addr_list^)^);
end;
end;
finally
SynSockCS.Leave;
end;
end
else
begin
FillChar(Hints1, Sizeof(Hints1), 0);
FillChar(Hints2, Sizeof(Hints2), 0);
TwoPass := False;
if Family = AF_UNSPEC then
begin
if PreferIP4 then
begin
Hints1.ai_family := AF_INET;
Hints2.ai_family := AF_INET6;
TwoPass := True;
end
else
begin
Hints2.ai_family := AF_INET;
Hints1.ai_family := AF_INET6;
TwoPass := True;
end;
end
else
Hints1.ai_family := Family;
Hints1.ai_socktype := SockType;
Hints1.ai_protocol := SockProtocol;
Hints2.ai_socktype := Hints1.ai_socktype;
Hints2.ai_protocol := Hints1.ai_protocol;
r := GetAddr(IP, Port, Hints1, Sin1);
Result := r;
sin := sin1;
if r <> 0 then
if TwoPass then
begin
r := GetAddr(IP, Port, Hints2, Sin2);
Result := r;
if r = 0 then
sin := sin2;
end;
end;
end;
function GetSinIP(Sin: TVarSin): string;
var
p: PChar;
host, serv: string;
hostlen, servlen: integer;
r: integer;
begin
Result := '';
if not IsNewApi(Sin.AddressFamily) then
begin
p := synsock.inet_ntoa(Sin.sin_addr);
if p <> nil then
Result := p;
end
else
begin
hostlen := NI_MAXHOST;
servlen := NI_MAXSERV;
setlength(host, hostlen);
setlength(serv, servlen);
r := getnameinfo(@sin, SizeOfVarSin(sin), PChar(host), hostlen,
PChar(serv), servlen, NI_NUMERICHOST + NI_NUMERICSERV);
if r = 0 then
Result := PChar(host);
end;
end;
function GetSinPort(Sin: TVarSin): Integer;
begin
if (Sin.sin_family = AF_INET6) then
Result := synsock.ntohs(Sin.sin6_port)
else
Result := synsock.ntohs(Sin.sin_port);
end;
procedure ResolveNameToIP(Name: string; Family, SockProtocol, SockType: integer; const IPList: TStrings);
type
TaPInAddr = array[0..250] of PInAddr;
PaPInAddr = ^TaPInAddr;
var
Hints: TAddrInfo;
Addr: PAddrInfo;
AddrNext: PAddrInfo;
r: integer;
host, serv: string;
hostlen, servlen: integer;
RemoteHost: PHostEnt;
IP: u_long;
PAdrPtr: PaPInAddr;
i: Integer;
s: string;
InAddr: TInAddr;
begin
IPList.Clear;
if not IsNewApi(Family) then
begin
IP := synsock.inet_addr(PChar(Name));
if IP = u_long(INADDR_NONE) then
begin
SynSockCS.Enter;
try
RemoteHost := synsock.GetHostByName(PChar(Name));
if RemoteHost <> nil then
begin
PAdrPtr := PAPInAddr(RemoteHost^.h_addr_list);
i := 0;
while PAdrPtr^[i] <> nil do
begin
InAddr := PAdrPtr^[i]^;
s := Format('%d.%d.%d.%d', [InAddr.S_bytes[0], InAddr.S_bytes[1],
InAddr.S_bytes[2], InAddr.S_bytes[3]]);
IPList.Add(s);
Inc(i);
end;
end;
finally
SynSockCS.Leave;
end;
end
else
IPList.Add(Name);
end
else
begin
Addr := nil;
try
FillChar(Hints, Sizeof(Hints), 0);
Hints.ai_family := AF_UNSPEC;
Hints.ai_socktype := SockType;
Hints.ai_protocol := SockProtocol;
Hints.ai_flags := 0;
r := synsock.GetAddrInfo(PChar(Name), nil, @Hints, Addr);
if r = 0 then
begin
AddrNext := Addr;
while not(AddrNext = nil) do
begin
if not(((Family = AF_INET6) and (AddrNext^.ai_family = AF_INET))
or ((Family = AF_INET) and (AddrNext^.ai_family = AF_INET6))) then
begin
hostlen := NI_MAXHOST;
servlen := NI_MAXSERV;
setlength(host, hostlen);
setlength(serv, servlen);
r := getnameinfo(AddrNext^.ai_addr, AddrNext^.ai_addrlen,
PChar(host), hostlen, PChar(serv), servlen,
NI_NUMERICHOST + NI_NUMERICSERV);
if r = 0 then
begin
host := PChar(host);
IPList.Add(host);
end;
end;
AddrNext := AddrNext^.ai_next;
end;
end;
finally
if Assigned(Addr) then
synsock.FreeAddrInfo(Addr);
end;
end;
if IPList.Count = 0 then
IPList.Add(cAnyHost);
end;
function ResolvePort(Port: string; Family, SockProtocol, SockType: integer): Word;
var
ProtoEnt: PProtoEnt;
ServEnt: PServEnt;
Hints: TAddrInfo;
Addr: PAddrInfo;
r: integer;
begin
Result := 0;
if not IsNewApi(Family) then
begin
SynSockCS.Enter;
try
ProtoEnt := synsock.GetProtoByNumber(SockProtocol);
ServEnt := nil;
if ProtoEnt <> nil then
ServEnt := synsock.GetServByName(PChar(Port), ProtoEnt^.p_name);
if ServEnt = nil then
Result := StrToIntDef(Port, 0)
else
Result := synsock.htons(ServEnt^.s_port);
finally
SynSockCS.Leave;
end;
end
else
begin
Addr := nil;
try
FillChar(Hints, Sizeof(Hints), 0);
Hints.ai_family := AF_UNSPEC;
Hints.ai_socktype := SockType;
Hints.ai_protocol := Sockprotocol;
Hints.ai_flags := AI_PASSIVE;
r := synsock.GetAddrInfo(nil, PChar(Port), @Hints, Addr);
if (r = 0) and Assigned(Addr) then
begin
if Addr^.ai_family = AF_INET then
Result := synsock.htons(Addr^.ai_addr^.sin_port);
if Addr^.ai_family = AF_INET6 then
Result := synsock.htons(PSockAddrIn6(Addr^.ai_addr)^.sin6_port);
end;
finally
if Assigned(Addr) then
synsock.FreeAddrInfo(Addr);
end;
end;
end;
function ResolveIPToName(IP: string; Family, SockProtocol, SockType: integer): string;
var
Hints: TAddrInfo;
Addr: PAddrInfo;
r: integer;
host, serv: string;
hostlen, servlen: integer;
RemoteHost: PHostEnt;
IPn: u_long;
begin
Result := IP;
if not IsNewApi(Family) then
begin
IPn := synsock.inet_addr(PChar(IP));
if IPn <> u_long(INADDR_NONE) then
begin
SynSockCS.Enter;
try
RemoteHost := GetHostByAddr(@IPn, SizeOf(IPn), AF_INET);
if RemoteHost <> nil then
Result := RemoteHost^.h_name;
finally
SynSockCS.Leave;
end;
end;
end
else
begin
Addr := nil;
try
FillChar(Hints, Sizeof(Hints), 0);
Hints.ai_family := AF_UNSPEC;
Hints.ai_socktype := SockType;
Hints.ai_protocol := SockProtocol;
Hints.ai_flags := 0;
r := synsock.GetAddrInfo(PChar(IP), nil, @Hints, Addr);
if (r = 0) and Assigned(Addr)then
begin
hostlen := NI_MAXHOST;
servlen := NI_MAXSERV;
setlength(host, hostlen);
setlength(serv, servlen);
r := getnameinfo(Addr^.ai_addr, Addr^.ai_addrlen,
PChar(host), hostlen, PChar(serv), servlen,
NI_NUMERICSERV);
if r = 0 then
Result := PChar(host);
end;
finally
if Assigned(Addr) then
synsock.FreeAddrInfo(Addr);
end;
end;
end;
{=============================================================================}
function InitSocketInterface(stack: string): Boolean;
begin
Result := False;
SockEnhancedApi := False;
if stack = '' then
stack := DLLStackName;
SynSockCS.Enter;
try
if SynSockCount = 0 then
begin
SockEnhancedApi := False;
SockWship6Api := False;
Libc.Signal(Libc.SIGPIPE, TSignalHandler(Libc.SIG_IGN));
LibHandle := LoadLibrary(PChar(Stack));
if LibHandle <> 0 then
begin
errno_loc := GetProcAddress(LibHandle, PChar('__errno_location'));
CloseSocket := GetProcAddress(LibHandle, PChar('close'));
IoctlSocket := GetProcAddress(LibHandle, PChar('ioctl'));
WSAGetLastError := LSWSAGetLastError;
WSAStartup := LSWSAStartup;
WSACleanup := LSWSACleanup;
ssAccept := GetProcAddress(LibHandle, PChar('accept'));
ssBind := GetProcAddress(LibHandle, PChar('bind'));
ssConnect := GetProcAddress(LibHandle, PChar('connect'));
ssGetPeerName := GetProcAddress(LibHandle, PChar('getpeername'));
ssGetSockName := GetProcAddress(LibHandle, PChar('getsockname'));
GetSockOpt := GetProcAddress(LibHandle, PChar('getsockopt'));
Htonl := GetProcAddress(LibHandle, PChar('htonl'));
Htons := GetProcAddress(LibHandle, PChar('htons'));
Inet_Addr := GetProcAddress(LibHandle, PChar('inet_addr'));
Inet_Ntoa := GetProcAddress(LibHandle, PChar('inet_ntoa'));
Listen := GetProcAddress(LibHandle, PChar('listen'));
Ntohl := GetProcAddress(LibHandle, PChar('ntohl'));
Ntohs := GetProcAddress(LibHandle, PChar('ntohs'));
ssRecv := GetProcAddress(LibHandle, PChar('recv'));
ssRecvFrom := GetProcAddress(LibHandle, PChar('recvfrom'));
Select := GetProcAddress(LibHandle, PChar('select'));
ssSend := GetProcAddress(LibHandle, PChar('send'));
ssSendTo := GetProcAddress(LibHandle, PChar('sendto'));
SetSockOpt := GetProcAddress(LibHandle, PChar('setsockopt'));
ShutDown := GetProcAddress(LibHandle, PChar('shutdown'));
Socket := GetProcAddress(LibHandle, PChar('socket'));
GetHostByAddr := GetProcAddress(LibHandle, PChar('gethostbyaddr'));
GetHostByName := GetProcAddress(LibHandle, PChar('gethostbyname'));
GetProtoByName := GetProcAddress(LibHandle, PChar('getprotobyname'));
GetProtoByNumber := GetProcAddress(LibHandle, PChar('getprotobynumber'));
GetServByName := GetProcAddress(LibHandle, PChar('getservbyname'));
GetServByPort := GetProcAddress(LibHandle, PChar('getservbyport'));
ssGetHostName := GetProcAddress(LibHandle, PChar('gethostname'));
{$IFNDEF FORCEOLDAPI}
GetAddrInfo := GetProcAddress(LibHandle, PChar('getaddrinfo'));
FreeAddrInfo := GetProcAddress(LibHandle, PChar('freeaddrinfo'));
GetNameInfo := GetProcAddress(LibHandle, PChar('getnameinfo'));
SockEnhancedApi := Assigned(GetAddrInfo) and Assigned(FreeAddrInfo)
and Assigned(GetNameInfo);
{$ENDIF}
Result := True;
end;
end
else Result := True;
if Result then
Inc(SynSockCount);
finally
SynSockCS.Leave;
end;
end;
function DestroySocketInterface: Boolean;
begin
SynSockCS.Enter;
try
Dec(SynSockCount);
if SynSockCount < 0 then
SynSockCount := 0;
if SynSockCount = 0 then
begin
if LibHandle <> 0 then
begin
FreeLibrary(libHandle);
LibHandle := 0;
end;
if LibWship6Handle <> 0 then
begin
FreeLibrary(LibWship6Handle);
LibWship6Handle := 0;
end;
end;
finally
SynSockCS.Leave;
end;
Result := True;
end;
initialization
begin
SynSockCS := SyncObjs.TCriticalSection.Create;
SET_IN6_IF_ADDR_ANY (@in6addr_any);
SET_LOOPBACK_ADDR6 (@in6addr_loopback);
end;
finalization
begin
SynSockCS.Free;
end;
{$ENDIF}