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{
This file is part of the Free Pascal run time library.
(c) 2000-2003 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.
Termios implementation for FreeBSD
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.
}
{******************************************************************************
IOCtl and Termios calls
******************************************************************************}
Function TCGetAttr(fd:cint;var tios:TermIOS):cint; {$ifdef VER2_0}inline;{$endif}
begin
TCGETAttr:=fpIoCtl(Fd,TIOCGETA,@tios);
end;
Function TCSetAttr(fd:cint;OptAct:cint;const tios:TermIOS):cint;
var
nr:TIOCtlRequest;
begin
case OptAct of
TCSANOW : nr:=TIOCSETA;
TCSADRAIN : nr:=TIOCSETAW;
TCSAFLUSH : nr:=TIOCSETAF;
else
begin
fpsetErrNo(ESysEINVAL);
TCSetAttr:=-1;
exit;
end;
end;
TCSetAttr:=fpIOCtl(fd,nr,@Tios);
end;
Procedure CFSetISpeed(var tios:TermIOS;speed:Cardinal); {$ifdef VER2_0}inline;{$endif}
begin
tios.c_ispeed:=speed; {Probably the Bxxxx speed constants}
end;
Procedure CFSetOSpeed(var tios:TermIOS;speed:Cardinal); {$ifdef VER2_0}inline;{$endif}
begin
tios.c_ospeed:=speed;
end;
Procedure CFMakeRaw(var tios:TermIOS);
begin
with tios do
begin
c_iflag:=c_iflag and (not (IMAXBEL or IXOFF or INPCK or BRKINT or
PARMRK or ISTRIP or INLCR or IGNCR or ICRNL or IXON or
IGNPAR));
c_iflag:=c_iflag OR IGNBRK;
c_oflag:=c_oflag and (not OPOST);
c_lflag:=c_lflag and (not (ECHO or ECHOE or ECHOK or ECHONL or ICANON or
ISIG or IEXTEN or NOFLSH or TOSTOP or PENDIN));
c_cflag:=(c_cflag and (not (CSIZE or PARENB))) or (CS8 OR cread);
c_cc[VMIN]:=1;
c_cc[VTIME]:=0;
end;
end;
Function TCSendBreak(fd,duration:cint):cint; {$ifdef VER2_0}inline;{$endif}
var
sleepytime : ttimeval;
begin
sleepytime.tv_sec := 0;
sleepytime.tv_usec := 400000;
if fpioctl(fd, TIOCSBRK, nil) = -1 then
exit(-1);
fpselect(0, nil, nil, nil, @sleepytime);
if fpioctl(fd, TIOCCBRK, nil) = -1 then
exit(-1);
TCSendBreak:=0;
end;
Function TCSetPGrp(fd,id:cint):cint;{$ifdef VER2_0}inline;{$endif}
begin
TCSetPGrp:=fpIOCtl(fd,TIOCSPGRP,pointer(id));
end;
Function TCGetPGrp(fd:cint;var id:cint):cint;{$ifdef VER2_0}inline;{$endif}
begin
TCGetPGrp:=fpIOCtl(fd,TIOCGPGRP,@id);
end;
Function TCDrain(fd:cint):cint;{$ifdef VER2_0}inline;{$endif}
begin
TCDrain:=fpIOCtl(fd,TIOCDRAIN,nil); {Should set timeout to 1 first?}
end;
const
_POSIX_VDISABLE = $ff;
Function TCFlow(fd,act:cint):cint; {$ifdef VER2_0}inline;{$endif}
var
term:Termios;
c : cuchar;
tmp : cint;
begin
case act OF
TCOOFF : TCFlow:=fpIoctl(fd,TIOCSTOP,nil);
TCOOn : TCFlow:=fpIOctl(Fd,TIOCStart,nil);
TCION,
TCIOFF : begin
if tcgetattr(fd, term) = -1 then
exit(-1);
if act=TCIOFF then
tmp:=VSTOP
else
tmp:=VSTART;
c:=term.c_cc[tmp];
if (c <> _POSIX_VDISABLE) and
(fpwrite(fd, c, sizeof(c)) = -1) then
exit (-1);
TCFlow:=0;
end;
else
begin
errno := esysEINVAL;
exit(-1);
end;
end;
end;
const FREAD = 1; // marked "BSD visible"
FWRITE = 2;
Function TCFlush(fd,qsel:cint):cint; {$ifdef VER2_0}inline;{$endif}
var comval : cint;
begin
case qsel of
TCIFlush : comval:=FREAD;
TCOFlush : comval:=FWRITE;
TCIOFlush : comval:=FREAD or FWRITE;
else
begin
errno:=ESysEINVAL;
exit(-1);
end;
end;
TCFlush:=fpIOCtl(fd,TIOCFLUSH,pointer(@comval));
end;
Function IsATTY (Handle:cint):cint;
{
Check if the filehandle described by 'handle' is a TTY (Terminal)
}
var
t : Termios;
begin
IsAtty:=ord(TCGetAttr(Handle,t) <> -1);
end;
Function IsATTY(var f: text):cint; {$ifdef VER2_0}inline;{$endif}
{
Idem as previous, only now for text variables.
}
begin
IsATTY:=IsaTTY(textrec(f).handle);
end;
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