paramcheck.h

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Overview

The functions in this group are used by the SerialPort server, spd and included in the C client interface library, libspd.a.

They are used by the interface library to validate serial port parameters prior to passing them to spd and within spd to validate serial port parameters in the configuration as well as to re-validate serial port parameters received from a client program.

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This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

Contact Martin Gregorie at martin@gregorie.org

Functions

paramcheck

#include "paramcheck.h"

char *paramcheck(int  baud,
                 int  databits,
                 char parity,
                 int  stopbits);

Sanity-check serial port parameters.

baud holds the line speed as a numeric baud rate.
databits holds the number of data bits per character.
parity is O(dd), E(ven) or N(one).
stopbits holds the number of stop bits.

The function returns NULL if all values are acceptable and a pointer to a string containing the error message if errors were detected.

In: paramcheck.c

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