/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2009-2010 The FreeBSD Foundation
 *
 * This software was developed by Pawel Jakub Dawidek under sponsorship from
 * the FreeBSD Foundation.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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.
 */

#ifndef _PROTO_IMPL_H_
#define _PROTO_IMPL_H_

#include <sys/queue.h>

#include <stdbool.h>    /* bool */
#include <stdlib.h>     /* size_t */

#define __constructor   __attribute__((constructor))

typedef int prt_client_t(const char *, const char *, void **);
typedef int prt_connect_t(void *, int);
typedef int prt_connect_wait_t(void *, int);
typedef int prt_server_t(const char *, void **);
typedef int prt_accept_t(void *, void **);
typedef int prt_wrap_t(int, bool, void **);
typedef int prt_send_t(void *, const unsigned char *, size_t, int);
typedef int prt_recv_t(void *, unsigned char *, size_t, int *);
typedef int prt_descriptor_t(const void *);
typedef bool prt_address_match_t(const void *, const char *);
typedef void prt_local_address_t(const void *, char *, size_t);
typedef void prt_remote_address_t(const void *, char *, size_t);
typedef void prt_close_t(void *);

struct proto {
        const char              *prt_name;
        prt_client_t            *prt_client;
        prt_connect_t           *prt_connect;
        prt_connect_wait_t      *prt_connect_wait;
        prt_server_t            *prt_server;
        prt_accept_t            *prt_accept;
        prt_wrap_t              *prt_wrap;
        prt_send_t              *prt_send;
        prt_recv_t              *prt_recv;
        prt_descriptor_t        *prt_descriptor;
        prt_address_match_t     *prt_address_match;
        prt_local_address_t     *prt_local_address;
        prt_remote_address_t    *prt_remote_address;
        prt_close_t             *prt_close;
        TAILQ_ENTRY(proto)       prt_next;
};

void proto_register(struct proto *proto, bool isdefault);

int proto_common_send(int sock, const unsigned char *data, size_t size, int fd);
int proto_common_recv(int sock, unsigned char *data, size_t size, int *fdp);

#endif  /* !_PROTO_IMPL_H_ */