| 1 | /* `struct termios' speed frobnication functions. 4.4 BSD/generic GNU version. |
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| 2 | Copyright (C) 1991-2022 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #include <stddef.h> |
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| 20 | #include <errno.h> |
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| 21 | #include <termios.h> |
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| 22 | |
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| 23 | /* Return the output baud rate stored in *TERMIOS_P. */ |
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| 24 | speed_t |
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| 25 | cfgetospeed (const struct termios *termios_p) |
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| 26 | { |
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| 27 | return termios_p->__ospeed; |
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| 28 | } |
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| 29 | |
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| 30 | /* Return the input baud rate stored in *TERMIOS_P. */ |
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| 31 | speed_t |
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| 32 | cfgetispeed (const struct termios *termios_p) |
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| 33 | { |
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| 34 | return termios_p->__ispeed; |
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| 35 | } |
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| 36 | |
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| 37 | /* Set the output baud rate stored in *TERMIOS_P to SPEED. */ |
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| 38 | int |
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| 39 | cfsetospeed (struct termios *termios_p, speed_t speed) |
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| 40 | { |
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| 41 | if (termios_p == NULL) |
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| 42 | { |
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| 43 | __set_errno (EINVAL); |
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| 44 | return -1; |
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| 45 | } |
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| 46 | |
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| 47 | termios_p->__ospeed = speed; |
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| 48 | return 0; |
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| 49 | } |
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| 50 | libc_hidden_def (cfsetospeed) |
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| 51 | |
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| 52 | /* Set the input baud rate stored in *TERMIOS_P to SPEED. */ |
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| 53 | int |
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| 54 | cfsetispeed (struct termios *termios_p, speed_t speed) |
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| 55 | { |
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| 56 | if (termios_p == NULL) |
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| 57 | { |
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| 58 | __set_errno (EINVAL); |
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| 59 | return -1; |
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| 60 | } |
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| 61 | |
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| 62 | termios_p->__ispeed = speed; |
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| 63 | return 0; |
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| 64 | } |
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| 65 | libc_hidden_def (cfsetispeed) |
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| 66 | |
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