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glibc/termios/tcsetattr.c
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/* Copyright (C) 1991-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#include <errno.h> | |
#include <stddef.h> | |
#include <termios.h> | |
static int bad_speed (speed_t speed); | |
/* Set the state of FD to *TERMIOS_P. */ | |
int | |
tcsetattr (int fd, int optional_actions, const struct termios *termios_p) | |
{ | |
if (fd < 0) | |
{ | |
__set_errno (EBADF); | |
return -1; | |
} | |
if (termios_p == NULL) | |
{ | |
__set_errno (EINVAL); | |
return -1; | |
} | |
switch (optional_actions) | |
{ | |
case TCSANOW: | |
case TCSADRAIN: | |
case TCSAFLUSH: | |
break; | |
default: | |
__set_errno (EINVAL); | |
return -1; | |
} | |
if (bad_speed(termios_p->__ospeed) || | |
bad_speed(termios_p->__ispeed == 0 ? | |
termios_p->__ospeed : termios_p->__ispeed)) | |
{ | |
__set_errno (EINVAL); | |
return -1; | |
} | |
__set_errno (ENOSYS); | |
return -1; | |
} | |
libc_hidden_def (tcsetattr) | |
/* Strychnine checking. */ | |
static int | |
bad_speed (speed_t speed) | |
{ | |
switch (speed) | |
{ | |
case B0: | |
case B50: | |
case B75: | |
case B110: | |
case B134: | |
case B150: | |
case B200: | |
case B300: | |
case B600: | |
case B1200: | |
case B1800: | |
case B2400: | |
case B4800: | |
case B9600: | |
case B19200: | |
case B38400: | |
case B57600: | |
case B115200: | |
case B230400: | |
case B460800: | |
case B500000: | |
case B576000: | |
case B921600: | |
case B1000000: | |
case B1152000: | |
case B1500000: | |
case B2000000: | |
case B2500000: | |
case B3000000: | |
case B3500000: | |
case B4000000: | |
return 0; | |
default: | |
return 1; | |
} | |
} | |
stub_warning (tcsetattr) |