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/* * 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 */
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