odr_bit.c

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/*
 * Copyright (c) 1995-2003, Index Data
 * See the file LICENSE for details.
 * Sebastian Hammer, Adam Dickmeiss
 *
 * $Id: odr_bit.c,v 1.18 2003/05/20 19:55:30 adam Exp $
 */
#if HAVE_CONFIG_H
#include <config.h>
#endif

#include <string.h>
#include "odr-priv.h"

/*
 * Top level bitstring string en/decoder.
 * Returns 1 on success, 0 on error.
 */
int odr_bitstring(ODR o, Odr_bitmask **p, int opt, const char *name)
{
    int res, cons = 0;

    if (o->error)
    	return 0;
    if (o->t_class < 0)
    {
    	o->t_class = ODR_UNIVERSAL;
    	o->t_tag = ODR_BITSTRING;
    }
    if ((res = ber_tag(o, p, o->t_class, o->t_tag, &cons, opt, name)) < 0)
    	return 0;
    if (!res)
    	return odr_missing(o, opt, name);
    if (o->direction == ODR_PRINT)
    {
	odr_prname(o, name);
    	fprintf(o->print, "BITSTRING(len=%d)\n",(*p)->top + 1);
    	return 1;
    }
    if (o->direction == ODR_DECODE)
    {
    	*p = (Odr_bitmask *)odr_malloc(o, sizeof(Odr_bitmask));
    	memset((*p)->bits, 0, ODR_BITMASK_SIZE);
    	(*p)->top = -1;
    }
#if 0
    /* ignoring the cons helps with at least one target. 
     * http://bugzilla.indexdata.dk/cgi-bin/bugzilla/show_bug.cgi?id=24
     */
    return ber_bitstring(o, *p, 0);
#else
    return ber_bitstring(o, *p, cons);
#endif
}