newlib-cygwin/winsup/cygwin/ioctl.cc

45 lines
994 B
C++

/* ioctl.cc: ioctl routines.
Copyright 1996, 1998 Cygnus Solutions.
Written by Doug Evans of Cygnus Support
dje@cygnus.com
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include <sys/ioctl.h>
#include <errno.h>
#include "winsup.h"
extern "C"
int
ioctl (int fd, int cmd, void *buf)
{
if (dtable.not_open (fd))
{
set_errno (EBADF);
return -1;
}
debug_printf ("fd %d, cmd %x\n", fd, cmd);
fhandler_base *fh = dtable[fd];
if (fh->is_tty () && fh->get_device () != FH_PTYM)
switch (cmd)
{
case TCGETA:
return tcgetattr (fd, (struct termios *) buf);
case TCSETA:
return tcsetattr (fd, TCSANOW, (struct termios *) buf);
case TCSETAW:
return tcsetattr (fd, TCSADRAIN, (struct termios *) buf);
case TCSETAF:
return tcsetattr (fd, TCSAFLUSH, (struct termios *) buf);
}
return fh->ioctl (cmd, buf);
}