mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 21:40:12 +00:00
83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
/* Copyright (C) 1992,1995,1997,1998,2003,2006 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <termios.h>
|
|
#include <unistd.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/types.h>
|
|
#include <sysdep.h>
|
|
|
|
/* The difference here is that the termios structure used in the
|
|
kernel is not the same as we use in the libc. Therefore we must
|
|
translate it here. */
|
|
#include <kernel_termios.h>
|
|
|
|
/* Put the state of FD into *TERMIOS_P. */
|
|
int
|
|
__tcgetattr (fd, termios_p)
|
|
int fd;
|
|
struct termios *termios_p;
|
|
{
|
|
struct __kernel_termios k_termios;
|
|
int retval;
|
|
|
|
retval = INLINE_SYSCALL (ioctl, 3, fd, TCGETS, &k_termios);
|
|
|
|
if (__builtin_expect (retval == 0, 1))
|
|
{
|
|
termios_p->c_iflag = k_termios.c_iflag;
|
|
termios_p->c_oflag = k_termios.c_oflag;
|
|
termios_p->c_cflag = k_termios.c_cflag;
|
|
termios_p->c_lflag = k_termios.c_lflag;
|
|
termios_p->c_line = k_termios.c_line;
|
|
#ifdef _HAVE_STRUCT_TERMIOS_C_ISPEED
|
|
# ifdef _HAVE_C_ISPEED
|
|
termios_p->c_ispeed = k_termios.c_ispeed;
|
|
# else
|
|
termios_p->c_ispeed = k_termios.c_cflag & (CBAUD | CBAUDEX);
|
|
# endif
|
|
#endif
|
|
#ifdef _HAVE_STRUCT_TERMIOS_C_OSPEED
|
|
# ifdef _HAVE_C_OSPEED
|
|
termios_p->c_ospeed = k_termios.c_ospeed;
|
|
# else
|
|
termios_p->c_ospeed = k_termios.c_cflag & (CBAUD | CBAUDEX);
|
|
# endif
|
|
#endif
|
|
if (sizeof (cc_t) == 1 || _POSIX_VDISABLE == 0
|
|
|| (unsigned char) _POSIX_VDISABLE == (unsigned char) -1)
|
|
memset (__mempcpy (&termios_p->c_cc[0], &k_termios.c_cc[0],
|
|
__KERNEL_NCCS * sizeof (cc_t)),
|
|
_POSIX_VDISABLE, (NCCS - __KERNEL_NCCS) * sizeof (cc_t));
|
|
else
|
|
{
|
|
memcpy (&termios_p->c_cc[0], &k_termios.c_cc[0],
|
|
__KERNEL_NCCS * sizeof (cc_t));
|
|
|
|
for (size_t cnt = __KERNEL_NCCS; cnt < NCCS; ++cnt)
|
|
termios_p->c_cc[cnt] = _POSIX_VDISABLE;
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
weak_alias (__tcgetattr, tcgetattr)
|