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#ifndef _ASM_GENERIC_TERMIOS_H
#define _ASM_GENERIC_TERMIOS_H
#include <asm/uaccess.h>
#include <uapi/asm-generic/termios.h>
/* intr=^C quit=^\ erase=del kill=^U
eof=^D vtime=\0 vmin=\1 sxtc=\0
start=^Q stop=^S susp=^Z eol=\0
reprint=^R discard=^U werase=^W lnext=^V
eol2=\0
*/
#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
/*
* Translate a "termio" structure into a "termios". Ugh.
*/
static inline int user_termio_to_kernel_termios(struct ktermios *termios,
const struct termio __user *termio)
{
unsigned short tmp;
if (get_user(tmp, &termio->c_iflag) < 0)
goto fault;
termios->c_iflag = (0xffff0000 & termios->c_iflag) | tmp;
if (get_user(tmp, &termio->c_oflag) < 0)
goto fault;
termios->c_oflag = (0xffff0000 & termios->c_oflag) | tmp;
if (get_user(tmp, &termio->c_cflag) < 0)
goto fault;
termios->c_cflag = (0xffff0000 & termios->c_cflag) | tmp;
if (get_user(tmp, &termio->c_lflag) < 0)
goto fault;
termios->c_lflag = (0xffff0000 & termios->c_lflag) | tmp;
if (get_user(termios->c_line, &termio->c_line) < 0)
goto fault;
if (copy_from_user(termios->c_cc, termio->c_cc, NCC) != 0)
goto fault;
return 0;
fault:
return -EFAULT;
}
/*
* Translate a "termios" structure into a "termio". Ugh.
*/
static inline int kernel_termios_to_user_termio(struct termio __user *termio,
struct ktermios *termios)
{
if (put_user(termios->c_iflag, &termio->c_iflag) < 0 ||
put_user(termios->c_oflag, &termio->c_oflag) < 0 ||
put_user(termios->c_cflag, &termio->c_cflag) < 0 ||
put_user(termios->c_lflag, &termio->c_lflag) < 0 ||
put_user(termios->c_line, &termio->c_line) < 0 ||
copy_to_user(termio->c_cc, termios->c_cc, NCC) != 0)
return -EFAULT;
return 0;
}
#ifdef TCGETS2
static inline int user_termios_to_kernel_termios(struct ktermios *k,
struct termios2 __user *u)
{
return copy_from_user(k, u, sizeof(struct termios2));
}
static inline int kernel_termios_to_user_termios(struct termios2 __user *u,
struct ktermios *k)
{
return copy_to_user(u, k, sizeof(struct termios2));
}
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));
}
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));
}
#else /* TCGETS2 */
static inline int user_termios_to_kernel_termios(struct ktermios *k,
struct termios __user *u)
{
return copy_from_user(k, u, sizeof(struct termios));
}
static inline int kernel_termios_to_user_termios(struct termios __user *u,
struct ktermios *k)
{
return copy_to_user(u, k, sizeof(struct termios));
}
#endif /* TCGETS2 */
#endif /* _ASM_GENERIC_TERMIOS_H */