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/* unix sockaddr mashup, for libreswan
*
* Copyright (C) 2019 Andrew Cagney <cagney@gnu.org>
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Library General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <https://www.gnu.org/licenses/lgpl-2.1.txt>.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
* License for more details.
*
*/
#ifndef IP_SOCKADDR_H
#define IP_SOCKADDR_H
#include <sys/socket.h> /* for struct sockaddr */
#include <netinet/in.h> /* for struct sockaddr_in */
#ifdef HAVE_INET6_IN6_H
#include <netinet6/in6.h> /* for struct sockaddr_in6 */
#endif
#include <ip_endpoint.h>
/*
* Size the sockaddr buffer big enough for all known
* alternatives. On linux, at least, this isn't true:
*
* passert(sizeof(struct sockaddr) >= sizeof(struct sockaddr_in));
* passert(sizeof(struct sockaddr) >= sizeof(struct sockaddr_in6));
*/
typedef struct {
socklen_t len;
union {
/* sa.sa_* */
struct sockaddr sa;
/* sin.sin_* */
struct sockaddr_in sin;
/* sin6.sin6_* */
struct sockaddr_in6 sin6;
} sa;
} ip_sockaddr;
extern const ip_sockaddr unset_sockaddr;
/*
* conversions
*
* if a port is needed then, presumably, it's an endpoint?
*/
ip_sockaddr sockaddr_from_address(const ip_address address);
ip_sockaddr sockaddr_from_address_port(const ip_address address, const ip_port port);
ip_sockaddr sockaddr_from_endpoint(const ip_endpoint endpoint);
err_t sockaddr_to_address_port(const struct sockaddr *sa, size_t len,
ip_address *address, ip_port *port);
#endif
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