mirror of
https://github.com/torvalds/linux.git
synced 2024-11-22 04:38:03 +00:00
c9874d3ffe
* new header (linut/termios_internal.h), pulled by the users of those suckers * defaults for INIT_C_CC and externs for conversion helpers moved over there * remove termios-base.h (empty now) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Link: https://lore.kernel.org/r/YxDmptU7dNGZ+/Hn@ZenIV Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <linux/termios_internal.h>
|
|
|
|
int user_termio_to_kernel_termios(struct ktermios *termios,
|
|
struct termio __user *termio)
|
|
{
|
|
struct termio v;
|
|
bool canon;
|
|
|
|
if (copy_from_user(&v, termio, sizeof(struct termio)))
|
|
return -EFAULT;
|
|
|
|
termios->c_iflag = (0xffff0000 & termios->c_iflag) | v.c_iflag;
|
|
termios->c_oflag = (0xffff0000 & termios->c_oflag) | v.c_oflag;
|
|
termios->c_cflag = (0xffff0000 & termios->c_cflag) | v.c_cflag;
|
|
termios->c_lflag = (0xffff0000 & termios->c_lflag) | v.c_lflag;
|
|
termios->c_line = (0xffff0000 & termios->c_lflag) | v.c_line;
|
|
|
|
canon = v.c_lflag & ICANON;
|
|
termios->c_cc[VINTR] = v.c_cc[_VINTR];
|
|
termios->c_cc[VQUIT] = v.c_cc[_VQUIT];
|
|
termios->c_cc[VERASE] = v.c_cc[_VERASE];
|
|
termios->c_cc[VKILL] = v.c_cc[_VKILL];
|
|
termios->c_cc[VEOL2] = v.c_cc[_VEOL2];
|
|
termios->c_cc[VSWTC] = v.c_cc[_VSWTC];
|
|
termios->c_cc[canon ? VEOF : VMIN] = v.c_cc[_VEOF];
|
|
termios->c_cc[canon ? VEOL : VTIME] = v.c_cc[_VEOL];
|
|
|
|
return 0;
|
|
}
|
|
|
|
int kernel_termios_to_user_termio(struct termio __user *termio,
|
|
struct ktermios *termios)
|
|
{
|
|
struct termio v;
|
|
bool canon;
|
|
|
|
memset(&v, 0, sizeof(struct termio));
|
|
v.c_iflag = termios->c_iflag;
|
|
v.c_oflag = termios->c_oflag;
|
|
v.c_cflag = termios->c_cflag;
|
|
v.c_lflag = termios->c_lflag;
|
|
v.c_line = termios->c_line;
|
|
|
|
canon = v.c_lflag & ICANON;
|
|
v.c_cc[_VINTR] = termios->c_cc[VINTR];
|
|
v.c_cc[_VQUIT] = termios->c_cc[VQUIT];
|
|
v.c_cc[_VERASE] = termios->c_cc[VERASE];
|
|
v.c_cc[_VKILL] = termios->c_cc[VKILL];
|
|
v.c_cc[_VEOF] = termios->c_cc[canon ? VEOF : VMIN];
|
|
v.c_cc[_VEOL] = termios->c_cc[canon ? VEOL : VTIME];
|
|
v.c_cc[_VEOL2] = termios->c_cc[VEOL2];
|
|
v.c_cc[_VSWTC] = termios->c_cc[VSWTC];
|
|
|
|
return copy_to_user(termio, &v, sizeof(struct termio));
|
|
}
|