/*
 * Copyright (c) 2006 Kungliga Tekniska Högskolan
 * (Royal Institute of Technology, Stockholm, Sweden).
 * 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. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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 <krb5_locl.h>
#include "locate_plugin.h"

static krb5_error_code KRB5_CALLCONV
resolve_init(krb5_context context, void **ctx)
{
    *ctx = NULL;
    return 0;
}

static void KRB5_CALLCONV
resolve_fini(void *ctx)
{
}

static krb5_error_code KRB5_CALLCONV
resolve_lookup(void *ctx,
	       enum locate_service_type service,
	       const char *realm,
	       int domain,
	       int type,
	       int (*add)(void *,int,struct sockaddr *),
	       void *addctx)
{
    struct sockaddr_in s;

    memset(&s, 0, sizeof(s));

#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
    s.sin_len = sizeof(s);
#endif
    s.sin_family = AF_INET;
    s.sin_port = htons(88);
    s.sin_addr.s_addr = htonl(0x7f000002);

    if (strcmp(realm, "NOTHERE.H5L.SE") == 0) {
	(*add)(addctx, type, (struct sockaddr *)&s);
	return 0;
    }

    return KRB5_PLUGIN_NO_HANDLE;
}


krb5plugin_service_locate_ftable resolve = {
    0,
    resolve_init,
    resolve_fini,
    resolve_lookup,
    NULL
};


int
main(int argc, char **argv)
{
    krb5_error_code ret;
    krb5_context context;
    krb5_krbhst_handle handle;
    char host[MAXHOSTNAMELEN];
    int found = 0;

    setprogname(argv[0]);

    ret = krb5_init_context(&context);
    if (ret)
	errx(1, "krb5_init_contex");

    ret = krb5_plugin_register(context, PLUGIN_TYPE_DATA,
			       KRB5_PLUGIN_LOCATE, &resolve);
    if (ret)
	krb5_err(context, 1, ret, "krb5_plugin_register");


    ret = krb5_krbhst_init_flags(context,
				 "NOTHERE.H5L.SE",
				 KRB5_KRBHST_KDC,
				 0,
				 &handle);
    if (ret)
	krb5_err(context, 1, ret, "krb5_krbhst_init_flags");


    while(krb5_krbhst_next_as_string(context, handle, host, sizeof(host)) == 0){
	found++;
 	if (!found && strcmp(host, "127.0.0.2") != 0 && strcmp(host, "tcp/127.0.0.2") != 0)
	    krb5_errx(context, 1, "wrong address: %s", host);
    }
    if (!found)
	krb5_errx(context, 1, "failed to find host");
    if (found < 2)
	krb5_errx(context, 1, "did not get the two expected results");

    krb5_krbhst_free(context, handle);

    krb5_free_context(context);
    return 0;
}