{==============================================================================| | Project : Ararat Synapse | 002.000.008 | |==============================================================================| | Content: Socket Independent Platform Layer - Linux definition include | |==============================================================================| | Copyright (c)1999-2003, 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. | | 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_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}