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{
This file is part of the Free Pascal run time library.
(c) 2004 by Marco van de Voort
member of the Free Pascal development team.
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
socket call implementations for Linux
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY;without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
}
{$if not defined(cpux86_64) and not defined(cpuaarch64) and not defined(cpuriscv32) and not defined(cpuriscv64) and not defined(cpuxtensa) and not defined(NO_SYSCALL_SOCKETCALL)}
{$define NEED_SOCKETCALL}
{$endif}
{******************************************************************************
Basic Socket Functions
******************************************************************************}
{$ifdef NEED_SOCKETCALL}
Const
{
Arguments to the Linux Kernel system call for sockets. All
Socket Connected calls go through the same system call,
with an extra argument to determine what action to take.
}
Socket_Sys_SOCKET = 1;
Socket_Sys_BIND = 2;
Socket_Sys_CONNECT = 3;
Socket_Sys_LISTEN = 4;
Socket_Sys_ACCEPT = 5;
Socket_Sys_GETSOCKNAME = 6;
Socket_Sys_GETPEERNAME = 7;
Socket_Sys_SOCKETPAIR = 8;
Socket_Sys_SEND = 9;
Socket_Sys_RECV = 10;
Socket_Sys_SENDTO = 11;
Socket_Sys_RECVFROM = 12;
Socket_Sys_SHUTDOWN = 13;
Socket_Sys_SETSOCKOPT = 14;
Socket_Sys_GETSOCKOPT = 15;
Socket_Sys_SENDMSG = 16;
Socket_Sys_RECVMSG = 17;
Function SocketCall(SockCallNr,a1,a2,a3,a4,a5,a6:TSysParam):cint; inline;
var
Args:array[1..6] of TSysParam;
begin
args[1]:=a1;
args[2]:=a2;
args[3]:=a3;
args[4]:=a4;
args[5]:=a5;
args[6]:=a6;
SocketCall:=do_Syscall(syscall_nr_socketcall,sockcallnr,TSysParam(@args));
internal_socketerror:=fpgeterrno;
end;
function SocketCall(SockCallNr,a1,a2,a3:TSysParam):cint;inline;
begin
SocketCall:=SocketCall(SockCallNr,a1,a2,a3,0,0,0);
end;
function fpsocket (domain:cint; xtype:cint; protocol: cint):cint;
begin
fpSocket:=SocketCall(Socket_Sys_socket,Domain,xtype,Protocol);
end;
function fpsend (s:cint; msg:pointer; len:size_t; flags:cint):ssize_t;
begin
fpSend:=SocketCall(Socket_Sys_sendto,S,TSysParam(msg),Len,Flags,0,0);
end;
function fpsendto (s:cint; msg:pointer; len:size_t; flags:cint; tox :psockaddr; tolen: tsocklen):ssize_t;
begin
fpSendto:=SocketCall(Socket_Sys_sendto,S,TSysParam(msg),Len,Flags,TSysParam(tox),tolen);
end;
function fprecv (s:cint; buf: pointer; len: size_t; flags:cint):ssize_t;
begin
fpRecv:=SocketCall(Socket_Sys_Recvfrom,S,tsysparam(buf),len,flags,0,0);
end;
function fprecvfrom (s:cint; buf: pointer; len: size_t; flags: cint; from : psockaddr; fromlen : psocklen):ssize_t;
begin
fpRecvFrom:=SocketCall(Socket_Sys_Recvfrom,S,TSysParam(buf),len,flags,TSysParam(from),TSysParam(fromlen));
end;
function fpbind (s:cint; addrx : psockaddr; addrlen : tsocklen):cint;
begin
fpBind:=SocketCall(Socket_Sys_Bind,S,TSysParam(addrx),addrlen);
end;
function fplisten (s:cint; backlog : cint):cint;
begin
fpListen:=SocketCall(Socket_Sys_Listen,S,backlog,0);
end;
function fpaccept (s:cint; addrx : psockaddr; addrlen : psocklen):cint;
begin
fpAccept:=SocketCall(Socket_Sys_accept,S,TSysParam(addrx),TSysParam(addrlen));
end;
function fpconnect (s:cint; name : psockaddr; namelen : tsocklen):cint;
begin
fpConnect:=SocketCall(Socket_Sys_connect,S,TSysParam(name),namelen);
end;
function fpshutdown (s:cint; how:cint):cint;
begin
fpShutDown:=SocketCall(Socket_Sys_shutdown,S,how,0);
end;
function fpgetsockname (s:cint; name : psockaddr; namelen : psocklen):cint;
begin
fpGetSockName:=SocketCall(Socket_Sys_GetSockName,S,TSysParam(name),TSysParam(namelen));
end;
function fpgetpeername (s:cint; name : psockaddr; namelen : psocklen):cint;
begin
fpGetPeerName:=SocketCall(Socket_Sys_GetPeerName,S,TSysParam(name),TSysParam(namelen));
end;
function fpsetsockopt (s:cint; level:cint; optname:cint; optval:pointer; optlen : tsocklen):cint;
begin
fpSetSockOpt:=SocketCall(Socket_Sys_SetSockOpt,S,level,optname,TSysParam(optval),optlen,0);
end;
function fpgetsockopt (s:cint; level:cint; optname:cint; optval:pointer; optlen : psocklen):cint;
begin
fpGetSockOpt:=SocketCall(Socket_Sys_GetSockOpt,S,level,TSysParam(optname),TSysParam(optval),TSysParam(optlen),0);
end;
function fpsocketpair (d:cint; xtype:cint; protocol:cint; sv:pcint):cint;
begin
fpSocketPair:=SocketCall(Socket_Sys_SocketPair,d,xtype,protocol,TSysParam(sv),0,0);
end;
{$else NEED_SOCKETCALL}
function fpsocket (domain:cint; xtype:cint; protocol: cint):cint;
begin
fpSocket:=do_syscall(syscall_nr_socket,Domain,xtype,Protocol);
internal_socketerror:=fpgeterrno;
end;
function fpsend (s:cint; msg:pointer; len:size_t; flags:cint):ssize_t;
begin
fpSend:=do_syscall(syscall_nr_sendto,S,TSysParam(msg),Len,Flags,0,0);
internal_socketerror:=fpgeterrno;
end;
function fpsendto (s:cint; msg:pointer; len:size_t; flags:cint; tox :psockaddr; tolen: tsocklen):ssize_t;
begin
fpSendto:=do_syscall(syscall_nr_sendto,S,TSysParam(msg),Len,Flags,TSysParam(tox),tolen);
internal_socketerror:=fpgeterrno;
end;
function fprecv (s:cint; buf: pointer; len: size_t; flags:cint):ssize_t;
begin
fpRecv:=do_syscall(syscall_nr_Recvfrom,S,tsysparam(buf),len,flags,0,0);
internal_socketerror:=fpgeterrno;
end;
function fprecvfrom (s:cint; buf: pointer; len: size_t; flags: cint; from : psockaddr; fromlen : psocklen):ssize_t;
begin
fpRecvFrom:=do_syscall(syscall_nr_Recvfrom,S,TSysParam(buf),len,flags,TSysParam(from),TSysParam(fromlen));
internal_socketerror:=fpgeterrno;
end;
function fpbind (s:cint; addrx : psockaddr; addrlen : tsocklen):cint;
begin
fpBind:=do_syscall(syscall_nr_Bind,S,TSysParam(addrx),addrlen);
internal_socketerror:=fpgeterrno;
end;
function fplisten (s:cint; backlog : cint):cint;
begin
fpListen:=do_syscall(syscall_nr_Listen,S,backlog);
internal_socketerror:=fpgeterrno;
end;
function fpaccept (s:cint; addrx : psockaddr; addrlen : psocklen):cint;
begin
fpAccept:=do_syscall(syscall_nr_accept,S,TSysParam(addrx),TSysParam(addrlen));
internal_socketerror:=fpgeterrno;
end;
function fpconnect (s:cint; name : psockaddr; namelen : tsocklen):cint;
begin
fpConnect:=do_syscall(syscall_nr_connect,S,TSysParam(name),namelen);
internal_socketerror:=fpgeterrno;
end;
function fpshutdown (s:cint; how:cint):cint;
begin
fpShutDown:=do_syscall(syscall_nr_shutdown,S,how);
internal_socketerror:=fpgeterrno;
end;
function fpgetsockname (s:cint; name : psockaddr; namelen : psocklen):cint;
begin
fpGetSockName:=do_syscall(syscall_nr_GetSockName,S,TSysParam(name),TSysParam(namelen));
internal_socketerror:=fpgeterrno;
end;
function fpgetpeername (s:cint; name : psockaddr; namelen : psocklen):cint;
begin
fpGetPeerName:=do_syscall(syscall_nr_GetPeerName,S,TSysParam(name),TSysParam(namelen));
internal_socketerror:=fpgeterrno;
end;
function fpsetsockopt (s:cint; level:cint; optname:cint; optval:pointer; optlen : tsocklen):cint;
begin
fpSetSockOpt:=do_syscall(syscall_nr_SetSockOpt,S,level,optname,TSysParam(optval),optlen);
internal_socketerror:=fpgeterrno;
end;
function fpgetsockopt (s:cint; level:cint; optname:cint; optval:pointer; optlen : psocklen):cint;
begin
fpGetSockOpt:=do_syscall(syscall_nr_GetSockOpt,S,level,TSysParam(optname),TSysParam(optval),TSysParam(optlen));
internal_socketerror:=fpgeterrno;
end;
function fpsocketpair (d:cint; xtype:cint; protocol:cint; sv:pcint):cint;
begin
fpSocketPair:=do_syscall(syscall_nr_SocketPair,d,xtype,protocol,TSysParam(sv));
internal_socketerror:=fpgeterrno;
end;
{$endif NEED_do_syscall}
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