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/* ioctl.cc: ioctl routines.
Copyright 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2006, 2008, 2009, 2011,
2012 Red Hat, Inc.
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 "winsup.h"
#include "cygerrno.h"
#include "path.h"
#include "fhandler.h"
#include "dtable.h"
#include "cygheap.h"
extern "C" int
ioctl (int fd, int cmd, ...)
{
cygheap_fdget cfd (fd);
if (cfd < 0)
return -1;
/* check for optional mode argument */
va_list ap;
va_start (ap, cmd);
char *argp = va_arg (ap, char *);
va_end (ap);
debug_printf ("ioctl(fd %d, cmd %y)", fd, cmd);
int res;
/* FIXME: This stinks. There are collisions between cmd types
depending on whether fd is associated with a pty master or not.
Something to fix for Cygwin2. CGF 2006-06-04 */
if (cfd->is_tty () && cfd->get_major () != DEV_PTYM_MAJOR)
switch (cmd)
{
case TCGETA:
res = tcgetattr (fd, (struct termios *) argp);
goto out;
case TCSETA:
res = tcsetattr (fd, TCSANOW, (struct termios *) argp);
goto out;
case TCSETAW:
res = tcsetattr (fd, TCSADRAIN, (struct termios *) argp);
goto out;
case TCSETAF:
res = tcsetattr (fd, TCSAFLUSH, (struct termios *) argp);
goto out;
}
res = cfd->ioctl (cmd, argp);
out:
syscall_printf ("%R = ioctl(%d, %y, ...)", res, fd, cmd);
return res;
}
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