cryb-to/lib/oath/cryb_oath_mode.c

/*-
 * Copyright (c) 2014 The University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote
 *    products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include "cryb/impl.h"

#include <stddef.h>
#include <stdint.h>
#include <strings.h>

#include <cryb/oath.h>

static const char *oath_mode_names[om_max] = {
	[om_hotp] = "hotp",
	[om_totp] = "totp",
};

/*
 * Returns the enum value that corresponds to an OATH mode name
 */
enum oath_mode
oath_mode_value(const char *str)
{
	enum oath_mode om;

	for (om = 0; om < om_max; ++om) {
		if (oath_mode_names[om] != NULL &&
		    strcasecmp(oath_mode_names[om], str) == 0) {
			return (om);
		}
	}
	return (om_undef);
}

/*
 * Returns the name of an OATH mode given its enum value
 */
const char *
oath_mode_name(enum oath_mode om)
{

	if (om < om_max)
		return (oath_mode_names[om]);
	return (NULL);
}