/*
 * Copyright (C) 2012 by Darren Reed.
 *
 * See the IPFILTER.LICENCE file for details on licencing.
 *
 * $Id$
 */

#include <ctype.h>
#include "ipf.h"

int
getportproto(char *name, int proto)
{
        struct servent *s;
        struct protoent *p;

        if (ISDIGIT(*name)) {
                int number;
                char *s;

                for (s = name; *s != '\0'; s++)
                        if (!ISDIGIT(*s))
                                return (-1);

                number = atoi(name);
                if (number < 0 || number > 65535)
                        return (-1);
                return (htons(number));
        }

        p = getprotobynumber(proto);
        s = getservbyname(name, p ? p->p_name : NULL);
        if (s != NULL)
                return (s->s_port);
        return (-1);
}