/*	$Id: client.c,v 1.5 2003/04/13 09:26:04 steve Exp $	*/

/*-
 * Copyright (c) 2001 Steve C. Woodford.
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *        This product includes software developed by Steve C. Woodford.
 * 4. 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 ``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 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 <stdlib.h>
#include <string.h>

#include "client.h"
#include "listener.h"
#include "logger.h"
#include "config.h"


static struct client_ops *client_types[] = {
	&listener_ops,
	&logger_ops,
	NULL
};

static const char *cf_client_opt_readonly(void *, char **, int, int, void *);
static const char *cf_client_opt_allowbreak(void *, char **, int, int, void *);
static const char *cf_client_opt_suppressbanner(void *, char **, int, int,
		    void *);
static const char *cf_client_opt_timeout(void *, char **, int, int, void *);

static struct config_tokens cf_client_option_tokens[] = {
 {"readonly",		1, cf_client_opt_readonly},
 {"allowbreak",		1, cf_client_opt_allowbreak},
 {"timeout",		1, cf_client_opt_timeout},
 {"suppressbanner",	1, cf_client_opt_suppressbanner},
 {NULL, 0, NULL}
};


int
client_init(struct client_ctx **ccp, struct client_ctx *pcc,
    struct client_ops *cops, struct client_options *copts, const void *carg)
{
	struct client_ctx *cc;

	if ((cc = calloc(1, sizeof(*cc))) == NULL)
		return (-1);

	cc->cc_parent = pcc;
	cc->cc_ops = cops;
	if (copts)
		cc->cc_options = *copts;
	cc->cc_fd = -1;

	if (cops->co_init && (cops->co_init)(cc, carg) < 0) {
		(void) free(cc);
		return (-1);
	}

	if (pcc)
		(void) client_ioctl(pcc, CLIENT_IOCTL_NEW_CHILD, NULL, cc);

	*ccp = cc;
	return (0);
}

void
client_destroy(struct client_ctx *cc)
{

	if (cc->cc_ops->co_destroy)
		(cc->cc_ops->co_destroy)(cc);

	if (cc->cc_parent)
		(void) client_ioctl(cc->cc_parent,CLIENT_IOCTL_CHILD_DELETED, NULL, cc);

	(void) free(cc);
}

const char *
cf_client_init(void *cs, char **argv, int argc, int is_compound, void *arg)
{
	struct client_ops **co;

	for (co = client_types; *co; co++)
		if (strcasecmp((*co)->co_name, argv[1]) == 0)
			break;

	if (*co == NULL)
		return (config_err(cs, "Unknown client type `%s'", argv[1]));

	return (((*co)->co_cf_init)(cs, argv, argc, is_compound, arg));
}

const char *
cf_client_options(void *cs, struct client_options *co)
{

	return (config_parse(cs, cf_client_option_tokens, (void *)co));
}

/* ARGSUSED */
static const char *
cf_client_opt_readonly(void *cs, char **argv, int argc, int cmpnd, void *arg)
{
	struct client_options *co = arg;

	return (config_boolean(cs, argv[1], &co->co_readonly));
}

/* ARGSUSED */
static const char *
cf_client_opt_allowbreak(void *cs, char **argv, int argc, int cmpnd, void *arg)
{
	struct client_options *co = arg;

	return (config_boolean(cs, argv[1], &co->co_allowbreak));
}

/* ARGSUSED */
static const char *
cf_client_opt_timeout(void *cs, char **argv, int argc,
	int cmpnd, void *arg)
{
	struct client_options *co = arg;

	return (config_integer(cs, argv[1], &co->co_timeout));
}

/* ARGSUSED */
static const char *
cf_client_opt_suppressbanner(void *cs, char **argv, int argc, int cmpnd,
    void *arg)
{
	struct client_options *co = arg;

	return (config_boolean(cs, argv[1], &co->co_suppressbanner));
}