1 /* `struct termios' speed frobnication functions. 4.4 BSD/generic GNU version. 2 Copyright (C) 1991-2021 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #include <stddef.h> 20 #include <errno.h> 21 #include <termios.h> 22 23 /* Return the output baud rate stored in *TERMIOS_P. */ 24 speed_t cfgetospeed(const struct termios * termios_p)25cfgetospeed (const struct termios *termios_p) 26 { 27 return termios_p->__ospeed; 28 } 29 30 /* Return the input baud rate stored in *TERMIOS_P. */ 31 speed_t cfgetispeed(const struct termios * termios_p)32cfgetispeed (const struct termios *termios_p) 33 { 34 return termios_p->__ispeed; 35 } 36 37 /* Set the output baud rate stored in *TERMIOS_P to SPEED. */ 38 int cfsetospeed(struct termios * termios_p,speed_t speed)39cfsetospeed (struct termios *termios_p, speed_t speed) 40 { 41 if (termios_p == NULL) 42 { 43 __set_errno (EINVAL); 44 return -1; 45 } 46 47 termios_p->__ospeed = speed; 48 return 0; 49 } libc_hidden_def(cfsetospeed)50libc_hidden_def (cfsetospeed) 51 52 /* Set the input baud rate stored in *TERMIOS_P to SPEED. */ 53 int 54 cfsetispeed (struct termios *termios_p, speed_t speed) 55 { 56 if (termios_p == NULL) 57 { 58 __set_errno (EINVAL); 59 return -1; 60 } 61 62 termios_p->__ispeed = speed; 63 return 0; 64 } 65 libc_hidden_def (cfsetispeed) 66