projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public | |
| 3 | * License. See the file "COPYING" in the main directory of this archive | |
| 4 | * for more details. | |
| 5 | * | |
| 6 | * Copyright (C) 1995, 1996, 2000, 2001 by Ralf Baechle | |
| 7 | * Copyright (C) 2000, 2001 Silicon Graphics, Inc. | |
| 8 | */ | |
| 9 | #ifndef _ASM_TERMIOS_H | |
| 10 | #define _ASM_TERMIOS_H | |
| 11 | ||
| 4ca98d39 | 12 | #include <asm/uaccess.h> |
| 61730c53 | 13 | #include <uapi/asm/termios.h> |
| 1da177e4 LT |
14 | |
| 15 | /* | |
| 16 | * intr=^C quit=^\ erase=del kill=^U | |
| 17 | * vmin=\1 vtime=\0 eol2=\0 swtc=\0 | |
| 18 | * start=^Q stop=^S susp=^Z vdsusp= | |
| 19 | * reprint=^R discard=^U werase=^W lnext=^V | |
| 20 | * eof=^D eol=\0 | |
| 21 | */ | |
| 22 | #define INIT_C_CC "\003\034\177\025\1\0\0\0\021\023\032\0\022\017\027\026\004\0" | |
| 1da177e4 LT |
23 | |
| 24 | #include <linux/string.h> | |
| 25 | ||
| 26 | /* | |
| 27 | * Translate a "termio" structure into a "termios". Ugh. | |
| 28 | */ | |
| 732f0462 RB |
29 | static inline int user_termio_to_kernel_termios(struct ktermios *termios, |
| 30 | struct termio __user *termio) | |
| 31 | { | |
| 32 | unsigned short iflag, oflag, cflag, lflag; | |
| 33 | unsigned int err; | |
| 34 | ||
| 35 | if (!access_ok(VERIFY_READ, termio, sizeof(struct termio))) | |
| 36 | return -EFAULT; | |
| 37 | ||
| 38 | err = __get_user(iflag, &termio->c_iflag); | |
| 39 | termios->c_iflag = (termios->c_iflag & 0xffff0000) | iflag; | |
| 40 | err |=__get_user(oflag, &termio->c_oflag); | |
| 41 | termios->c_oflag = (termios->c_oflag & 0xffff0000) | oflag; | |
| 42 | err |=__get_user(cflag, &termio->c_cflag); | |
| 43 | termios->c_cflag = (termios->c_cflag & 0xffff0000) | cflag; | |
| 44 | err |=__get_user(lflag, &termio->c_lflag); | |
| 45 | termios->c_lflag = (termios->c_lflag & 0xffff0000) | lflag; | |
| 46 | err |=__get_user(termios->c_line, &termio->c_line); | |
| 47 | if (err) | |
| 48 | return -EFAULT; | |
| 49 | ||
| 50 | if (__copy_from_user(termios->c_cc, termio->c_cc, NCC)) | |
| 51 | return -EFAULT; | |
| 52 | ||
| 53 | return 0; | |
| 54 | } | |
| 1da177e4 LT |
55 | |
| 56 | /* | |
| 57 | * Translate a "termios" structure into a "termio". Ugh. | |
| 58 | */ | |
| 732f0462 RB |
59 | static inline int kernel_termios_to_user_termio(struct termio __user *termio, |
| 60 | struct ktermios *termios) | |
| 61 | { | |
| 62 | int err; | |
| 63 | ||
| 64 | if (!access_ok(VERIFY_WRITE, termio, sizeof(struct termio))) | |
| 65 | return -EFAULT; | |
| 66 | ||
| 67 | err = __put_user(termios->c_iflag, &termio->c_iflag); | |
| 68 | err |= __put_user(termios->c_oflag, &termio->c_oflag); | |
| 69 | err |= __put_user(termios->c_cflag, &termio->c_cflag); | |
| 70 | err |= __put_user(termios->c_lflag, &termio->c_lflag); | |
| 71 | err |= __put_user(termios->c_line, &termio->c_line); | |
| 72 | if (err) | |
| 73 | return -EFAULT; | |
| 74 | ||
| 75 | if (__copy_to_user(termio->c_cc, termios->c_cc, NCC)) | |
| 76 | return -EFAULT; | |
| 77 | ||
| 78 | return 0; | |
| 79 | } | |
| 80 | ||
| 81 | static inline int user_termios_to_kernel_termios(struct ktermios __user *k, | |
| 82 | struct termios2 *u) | |
| 83 | { | |
| 84 | return copy_from_user(k, u, sizeof(struct termios2)) ? -EFAULT : 0; | |
| 85 | } | |
| 86 | ||
| 87 | static inline int kernel_termios_to_user_termios(struct termios2 __user *u, | |
| 88 | struct ktermios *k) | |
| 89 | { | |
| 90 | return copy_to_user(u, k, sizeof(struct termios2)) ? -EFAULT : 0; | |
| 91 | } | |
| 92 | ||
| 93 | static inline int user_termios_to_kernel_termios_1(struct ktermios *k, | |
| 94 | struct termios __user *u) | |
| 95 | { | |
| 96 | return copy_from_user(k, u, sizeof(struct termios)) ? -EFAULT : 0; | |
| 97 | } | |
| 98 | ||
| 99 | static inline int kernel_termios_to_user_termios_1(struct termios __user *u, | |
| 100 | struct ktermios *k) | |
| 101 | { | |
| 102 | return copy_to_user(u, k, sizeof(struct termios)) ? -EFAULT : 0; | |
| 103 | } | |
| 1da177e4 | 104 | |
| 1da177e4 | 105 | #endif /* _ASM_TERMIOS_H */ |