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/*
*
* Copyright 2015, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. 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 COPYRIGHT HOLDERS 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 COPYRIGHT
* OWNER 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 GRPC_INTERNAL_CORE_IOMGR_SOCKADDR_UTILS_H
#define GRPC_INTERNAL_CORE_IOMGR_SOCKADDR_UTILS_H
#include "src/core/iomgr/sockaddr.h"
/* Returns true if addr is an IPv4-mapped IPv6 address within the
::ffff:0.0.0.0/96 range, or false otherwise.
If addr4_out is non-NULL, the inner IPv4 address will be copied here when
returning true. */
int grpc_sockaddr_is_v4mapped(const struct sockaddr *addr,
struct sockaddr_in *addr4_out);
/* If addr is an AF_INET address, writes the corresponding ::ffff:0.0.0.0/96
address to addr6_out and returns true. Otherwise returns false. */
int grpc_sockaddr_to_v4mapped(const struct sockaddr *addr,
struct sockaddr_in6 *addr6_out);
/* If addr is ::, 0.0.0.0, or ::ffff:0.0.0.0, writes the port number to
*port_out (if not NULL) and returns true, otherwise returns false. */
int grpc_sockaddr_is_wildcard(const struct sockaddr *addr, int *port_out);
/* Writes 0.0.0.0:port and [::]:port to separate sockaddrs. */
void grpc_sockaddr_make_wildcards(int port, struct sockaddr_in *wild4_out,
struct sockaddr_in6 *wild6_out);
/* Writes 0.0.0.0:port. */
void grpc_sockaddr_make_wildcard4(int port, struct sockaddr_in *wild_out);
/* Writes [::]:port. */
void grpc_sockaddr_make_wildcard6(int port, struct sockaddr_in6 *wild_out);
/* Return the IP port number of a sockaddr */
int grpc_sockaddr_get_port(const struct sockaddr *addr);
/* Set IP port number of a sockaddr */
int grpc_sockaddr_set_port(const struct sockaddr *addr, int port);
/* Converts a sockaddr into a newly-allocated human-readable string.
Currently, only the AF_INET and AF_INET6 families are recognized.
If the normalize flag is enabled, ::ffff:0.0.0.0/96 IPv6 addresses are
displayed as plain IPv4.
Usage is similar to gpr_asprintf: returns the number of bytes written
(excluding the final '\0'), and *out points to a string which must later be
destroyed using gpr_free().
In the unlikely event of an error, returns -1 and sets *out to NULL.
The existing value of errno is always preserved. */
int grpc_sockaddr_to_string(char **out, const struct sockaddr *addr,
int normalize);
#endif /* GRPC_INTERNAL_CORE_IOMGR_SOCKADDR_UTILS_H */
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