106 lines
2.9 KiB
C
106 lines
2.9 KiB
C
|
/*
|
||
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
||
|
|
* License. See the file "COPYING" in the main directory of this archive
|
||
|
|
* for more details.
|
||
|
|
*
|
||
|
|
* Copyright (C) 1995, 1996, 2000, 2001 by Ralf Baechle
|
||
|
|
* Copyright (C) 2000, 2001 Silicon Graphics, Inc.
|
||
|
|
*/
|
||
|
|
#ifndef _ASM_TERMIOS_H
|
||
|
|
#define _ASM_TERMIOS_H
|
||
|
|
|
||
|
|
#include <linux/uaccess.h>
|
||
|
|
#include <uapi/asm/termios.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* intr=^C quit=^\ erase=del kill=^U
|
||
|
|
* vmin=\1 vtime=\0 eol2=\0 swtc=\0
|
||
|
|
* start=^Q stop=^S susp=^Z vdsusp=
|
||
|
|
* reprint=^R discard=^U werase=^W lnext=^V
|
||
|
|
* eof=^D eol=\0
|
||
|
|
*/
|
||
|
|
#define INIT_C_CC "\003\034\177\025\1\0\0\0\021\023\032\0\022\017\027\026\004\0"
|
||
|
|
|
||
|
|
#include <linux/string.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Translate a "termio" structure into a "termios". Ugh.
|
||
|
|
*/
|
||
|
|
static inline int user_termio_to_kernel_termios(struct ktermios *termios,
|
||
|
|
struct termio __user *termio)
|
||
|
|
{
|
||
|
|
unsigned short iflag, oflag, cflag, lflag;
|
||
|
|
unsigned int err;
|
||
|
|
|
||
|
|
if (!access_ok(termio, sizeof(struct termio)))
|
||
|
|
return -EFAULT;
|
||
|
|
|
||
|
|
err = __get_user(iflag, &termio->c_iflag);
|
||
|
|
termios->c_iflag = (termios->c_iflag & 0xffff0000) | iflag;
|
||
|
|
err |=__get_user(oflag, &termio->c_oflag);
|
||
|
|
termios->c_oflag = (termios->c_oflag & 0xffff0000) | oflag;
|
||
|
|
err |=__get_user(cflag, &termio->c_cflag);
|
||
|
|
termios->c_cflag = (termios->c_cflag & 0xffff0000) | cflag;
|
||
|
|
err |=__get_user(lflag, &termio->c_lflag);
|
||
|
|
termios->c_lflag = (termios->c_lflag & 0xffff0000) | lflag;
|
||
|
|
err |=__get_user(termios->c_line, &termio->c_line);
|
||
|
|
if (err)
|
||
|
|
return -EFAULT;
|
||
|
|
|
||
|
|
if (__copy_from_user(termios->c_cc, termio->c_cc, NCC))
|
||
|
|
return -EFAULT;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Translate a "termios" structure into a "termio". Ugh.
|
||
|
|
*/
|
||
|
|
static inline int kernel_termios_to_user_termio(struct termio __user *termio,
|
||
|
|
struct ktermios *termios)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
|
||
|
|
if (!access_ok(termio, sizeof(struct termio)))
|
||
|
|
return -EFAULT;
|
||
|
|
|
||
|
|
err = __put_user(termios->c_iflag, &termio->c_iflag);
|
||
|
|
err |= __put_user(termios->c_oflag, &termio->c_oflag);
|
||
|
|
err |= __put_user(termios->c_cflag, &termio->c_cflag);
|
||
|
|
err |= __put_user(termios->c_lflag, &termio->c_lflag);
|
||
|
|
err |= __put_user(termios->c_line, &termio->c_line);
|
||
|
|
if (err)
|
||
|
|
return -EFAULT;
|
||
|
|
|
||
|
|
if (__copy_to_user(termio->c_cc, termios->c_cc, NCC))
|
||
|
|
return -EFAULT;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int user_termios_to_kernel_termios(struct ktermios __user *k,
|
||
|
|
struct termios2 *u)
|
||
|
|
{
|
||
|
|
return copy_from_user(k, u, sizeof(struct termios2)) ? -EFAULT : 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int kernel_termios_to_user_termios(struct termios2 __user *u,
|
||
|
|
struct ktermios *k)
|
||
|
|
{
|
||
|
|
return copy_to_user(u, k, sizeof(struct termios2)) ? -EFAULT : 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int user_termios_to_kernel_termios_1(struct ktermios *k,
|
||
|
|
struct termios __user *u)
|
||
|
|
{
|
||
|
|
return copy_from_user(k, u, sizeof(struct termios)) ? -EFAULT : 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int kernel_termios_to_user_termios_1(struct termios __user *u,
|
||
|
|
struct ktermios *k)
|
||
|
|
{
|
||
|
|
return copy_to_user(u, k, sizeof(struct termios)) ? -EFAULT : 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* _ASM_TERMIOS_H */
|