void explain_tcsetattr_or_die(int fildes, int options, const struct termios
*data);
int explain_tcsetattr_on_error(int fildes, int options, const struct
termios *data);
DESCRIPTION
The explain_tcsetattr_or_die function is used to call the
tcsetattr(3) system call. On failure an explanation will be printed
to stderr, obtained from the explain_tcsetattr(3) function,
and then the process terminates by calling exit(EXIT_FAILURE).
The explain_tcsetattr_on_error function is used to call the
tcsetattr(3) system call. On failure an explanation will be printed
to stderr, obtained from the explain_tcsetattr(3) function,
but still returns to the caller.
fildes
The fildes, exactly as to be passed to the tcsetattr(3) system
call.
options
The options, exactly as to be passed to the tcsetattr(3) system
call.
data
The data, exactly as to be passed to the tcsetattr(3) system
call.
RETURN VALUE
The explain_tcsetattr_or_die function only returns on success, see
tcsetattr(3) for more information. On failure, prints an
explanation and exits, it does not return.
The explain_tcsetattr_on_error function always returns the value
return by the wrapped tcsetattr(3) system call.
EXAMPLE
The explain_tcsetattr_or_die function is intended to be used in a
fashion similar to the following example: