[Overview][Constants][Types][Procedures and functions] |
General kernel IOCTL call.
Source position: bunxh.inc line 93
function FpIOCtl( |
Handle: cInt; |
Ndx: cuLong; |
Data: Pointer |
):cInt; |
This is a general interface to the Unix/ linux ioctl call. It performs various operations on the filedescriptor Handle. Ndxdescribes the operation to perform. Datapoints to data needed for the Ndxfunction. The structure of this data is function-dependent, so we don't elaborate on this here. For more information on this, see various manual pages under linux.
Extended error information can be retrieved using fpGetErrno.
Program Example54; uses BaseUnix,Termio; { Program to demonstrate the IOCtl function. } var tios : Termios; begin {$ifdef FreeBSD} fpIOCtl(1,TIOCGETA,@tios); // these constants are very OS dependant. // see the tcgetattr example for a better way {$endif} WriteLn('Input Flags : $',hexstr(tios.c_iflag,8)); WriteLn('Output Flags : $',hexstr(tios.c_oflag,8)); WriteLn('Line Flags : $',hexstr(tios.c_lflag,8)); WriteLn('Control Flags: $',hexstr(tios.c_cflag,8)); end.