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/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef GRPC_CORE_LIB_IOMGR_SOCKADDR_UTILS_H
#define GRPC_CORE_LIB_IOMGR_SOCKADDR_UTILS_H
#include "src/core/lib/iomgr/resolve_address.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 grpc_resolved_address *addr,
grpc_resolved_address *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 grpc_resolved_address *addr,
grpc_resolved_address *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 grpc_resolved_address *addr, int *port_out);
/* Writes 0.0.0.0:port and [::]:port to separate sockaddrs. */
void grpc_sockaddr_make_wildcards(int port, grpc_resolved_address *wild4_out,
grpc_resolved_address *wild6_out);
/* Writes 0.0.0.0:port. */
void grpc_sockaddr_make_wildcard4(int port, grpc_resolved_address *wild_out);
/* Writes [::]:port. */
void grpc_sockaddr_make_wildcard6(int port, grpc_resolved_address *wild_out);
/* Return the IP port number of a sockaddr */
int grpc_sockaddr_get_port(const grpc_resolved_address *addr);
/* Set IP port number of a sockaddr */
int grpc_sockaddr_set_port(const grpc_resolved_address *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 grpc_resolved_address *addr,
int normalize);
/* Returns the URI string corresponding to \a addr */
char *grpc_sockaddr_to_uri(const grpc_resolved_address *addr);
/* Returns the URI scheme corresponding to \a addr */
const char *grpc_sockaddr_get_uri_scheme(const grpc_resolved_address *addr);
#endif /* GRPC_CORE_LIB_IOMGR_SOCKADDR_UTILS_H */
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