66 lines
1.5 KiB
C++
66 lines
1.5 KiB
C++
/* ioctl.cc: ioctl routines.
|
|
|
|
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;
|
|
if (cfd->get_flags () & O_PATH)
|
|
{
|
|
set_errno (EBADF);
|
|
return -1;
|
|
}
|
|
/* 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;
|
|
}
|