diff options
Diffstat (limited to 'termios/tcsetattr.c')
-rw-r--r-- | termios/tcsetattr.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/termios/tcsetattr.c b/termios/tcsetattr.c new file mode 100644 index 0000000..205838c --- /dev/null +++ b/termios/tcsetattr.c @@ -0,0 +1,108 @@ +/* Copyright (C) 1991,95,96,2000,01,02 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#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) +#include <stub-tag.h> |