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04277e02d7
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
107 lines
2.2 KiB
C
107 lines
2.2 KiB
C
/* Copyright (C) 1991-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <stddef.h>
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#include <termios.h>
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static int bad_speed (speed_t speed);
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/* Set the state of FD to *TERMIOS_P. */
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int
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tcsetattr (int fd, int optional_actions, const struct termios *termios_p)
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{
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if (fd < 0)
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{
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__set_errno (EBADF);
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return -1;
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}
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if (termios_p == NULL)
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{
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__set_errno (EINVAL);
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return -1;
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}
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switch (optional_actions)
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{
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case TCSANOW:
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case TCSADRAIN:
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case TCSAFLUSH:
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break;
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default:
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__set_errno (EINVAL);
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return -1;
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}
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if (bad_speed(termios_p->__ospeed) ||
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bad_speed(termios_p->__ispeed == 0 ?
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termios_p->__ospeed : termios_p->__ispeed))
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{
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__set_errno (EINVAL);
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return -1;
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}
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__set_errno (ENOSYS);
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return -1;
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}
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libc_hidden_def (tcsetattr)
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/* Strychnine checking. */
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static int
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bad_speed (speed_t speed)
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{
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switch (speed)
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{
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case B0:
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case B50:
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case B75:
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case B110:
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case B134:
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case B150:
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case B200:
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case B300:
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case B600:
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case B1200:
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case B1800:
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case B2400:
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case B4800:
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case B9600:
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case B19200:
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case B38400:
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case B57600:
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case B115200:
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case B230400:
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case B460800:
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case B500000:
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case B576000:
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case B921600:
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case B1000000:
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case B1152000:
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case B1500000:
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case B2000000:
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case B2500000:
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case B3000000:
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case B3500000:
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case B4000000:
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return 0;
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default:
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return 1;
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}
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}
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stub_warning (tcsetattr)
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