Function tcsetattr

components/libc/posix/io/termios/termios.c:57–80

* @brief Sets the attributes of a terminal device. * @param fd File descriptor of the terminal device. * @param act Action to be taken for the attribute change (TCSANOW, TCSADRAIN, or TCSAFLUSH). * @param tio Pointer to a struct termios containing the new attributes. * @return Upon successful completion, returns 0; otherwise, returns -1 and sets errno to indicate the error. * * @not

 *          and the function returns -1.
 */
int tcsetattr(int fd, int act, const struct termios *tio)
{
    switch (act)
    {
    case TCSANOW:
        /* make the change immediately */
        return (ioctl(fd, TCSETA, (void*)tio));
    case TCSADRAIN:
        /*
         * Don't make the change until all currently written data
         * has been transmitted.
         */
        return (ioctl(fd, TCSETAW, (void*)tio));
    case TCSAFLUSH:
        /* Don't make the change until all currently written data
         * has been transmitted, at which point any received but
         * unread data is also discarded.
         */
        return (ioctl(fd, TCSETAF, (void*)tio));
    default:
        errno = EINVAL;
        return (-1);
    }
}

/**
 * @brief   Gets the session ID of a terminal.