/* This file is part of the YAZ toolkit.
 * Copyright (C) Index Data
 * See the file LICENSE for details.
 */
/**
 * \file odr_use.c
 * \brief Implements misc ODR types.
 */
#if HAVE_CONFIG_H
#include <config.h>
#endif

#include "odr-priv.h"

int odr_external(ODR o, Odr_external **p, int opt, const char *name)
{
    Odr_external *pp;
    static Odr_arm arm[] =
    {
        {ODR_EXPLICIT, ODR_CONTEXT, 0, ODR_EXTERNAL_single,
         (Odr_fun)odr_any, "single"},
        {ODR_IMPLICIT, ODR_CONTEXT, 1, ODR_EXTERNAL_octet,
         (Odr_fun)odr_octetstring, "octet"},
        {ODR_IMPLICIT, ODR_CONTEXT, 2, ODR_EXTERNAL_arbitrary,
         (Odr_fun)odr_bitstring, "arbitrary"},
        {-1, -1, -1, -1, 0, 0}
    };

    odr_implicit_settag(o, ODR_UNIVERSAL, ODR_EXTERNAL);
    if (!odr_sequence_begin(o, p, sizeof(Odr_external), name))
        return odr_missing(o, opt, name);
    pp = *p;
    return
        odr_oid(o, &pp->direct_reference, 1, "direct") &&
        odr_integer(o, &pp->indirect_reference, 1, "indirect") &&
        odr_graphicstring(o, &pp->descriptor, 1, "descriptor") &&
        odr_choice(o, arm, &pp->u, &pp->which, 0) &&
        odr_sequence_end(o);
}

int odr_visiblestring(ODR o, char **p, int opt, const char *name)
{
    return odr_implicit_tag(o, odr_cstring, p, ODR_UNIVERSAL,
                            ODR_VISIBLESTRING, opt, name);
}

/*
 * a char may not be sufficient to hold a general string, but we'll deal
 * with that once we start looking more closely at UniCode & co.
 */
int odr_generalstring(ODR o, char **p, int opt, const char *name)
{
    return odr_implicit_tag(o, odr_iconv_string, p, ODR_UNIVERSAL,
                            ODR_GENERALSTRING,opt, name);
}

int odr_graphicstring(ODR o, char **p, int opt, const char *name)
{
    return odr_implicit_tag(o, odr_cstring, p, ODR_UNIVERSAL,
                        ODR_GRAPHICSTRING, opt, name);
}

int odr_generalizedtime(ODR o, char **p, int opt, const char *name)
{
    return odr_implicit_tag(o, odr_cstring, p, ODR_UNIVERSAL,
                            ODR_GENERALIZEDTIME, opt, name);
}
/*
 * Local variables:
 * c-basic-offset: 4
 * c-file-style: "Stroustrup"
 * indent-tabs-mode: nil
 * End:
 * vim: shiftwidth=4 tabstop=8 expandtab
 */