/*
 * Copyright (C) 1993-2001 by Darren Reed.
 *
 * See the IPFILTER.LICENCE file for details on licencing.
 *
 * $Id: optname.c,v 1.3 2001/06/09 17:09:24 darrenr Exp $
 */

#include "ipf.h"


u_32_t optname(cp, sp, linenum)
char ***cp;
u_short *sp;
int linenum;
{
        struct ipopt_names *io, *so;
        u_long msk = 0;
        u_short smsk = 0;
        char *s;
        int sec = 0;

        for (s = strtok(**cp, ","); s; s = strtok(NULL, ",")) {
                for (io = ionames; io->on_name; io++)
                        if (!strcasecmp(s, io->on_name)) {
                                msk |= io->on_bit;
                                break;
                        }
                if (!io->on_name) {
                        fprintf(stderr, "%d: unknown IP option name %s\n",
                                linenum, s);
                        return 0;
                }
                if (!strcasecmp(s, "sec-class"))
                        sec = 1;
        }

        if (sec && !*(*cp + 1)) {
                fprintf(stderr, "%d: missing security level after sec-class\n",
                        linenum);
                return 0;
        }

        if (sec) {
                (*cp)++;
                for (s = strtok(**cp, ","); s; s = strtok(NULL, ",")) {
                        for (so = secclass; so->on_name; so++)
                                if (!strcasecmp(s, so->on_name)) {
                                        smsk |= so->on_bit;
                                        break;
                                }
                        if (!so->on_name) {
                                fprintf(stderr,
                                        "%d: no such security level: %s\n",
                                        linenum, s);
                                return 0;
                        }
                }
                if (smsk)
                        *sp = smsk;
        }
        return msk;
}