3 * Copyright 2015 gRPC authors.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
19 #ifndef GRPC_CORE_LIB_IOMGR_SOCKADDR_UTILS_H
20 #define GRPC_CORE_LIB_IOMGR_SOCKADDR_UTILS_H
22 #include <grpc/support/port_platform.h>
24 #include "src/core/lib/iomgr/resolve_address.h"
26 /* Returns true if addr is an IPv4-mapped IPv6 address within the
27 ::ffff:0.0.0.0/96 range, or false otherwise.
29 If addr4_out is non-NULL, the inner IPv4 address will be copied here when
31 int grpc_sockaddr_is_v4mapped(const grpc_resolved_address* addr,
32 grpc_resolved_address* addr4_out);
34 /* If addr is an AF_INET address, writes the corresponding ::ffff:0.0.0.0/96
35 address to addr6_out and returns true. Otherwise returns false. */
36 int grpc_sockaddr_to_v4mapped(const grpc_resolved_address* addr,
37 grpc_resolved_address* addr6_out);
39 /* If addr is ::, 0.0.0.0, or ::ffff:0.0.0.0, writes the port number to
40 *port_out (if not NULL) and returns true, otherwise returns false. */
41 int grpc_sockaddr_is_wildcard(const grpc_resolved_address* addr, int* port_out);
43 /* Writes 0.0.0.0:port and [::]:port to separate sockaddrs. */
44 void grpc_sockaddr_make_wildcards(int port, grpc_resolved_address* wild4_out,
45 grpc_resolved_address* wild6_out);
47 /* Writes 0.0.0.0:port. */
48 void grpc_sockaddr_make_wildcard4(int port, grpc_resolved_address* wild_out);
50 /* Writes [::]:port. */
51 void grpc_sockaddr_make_wildcard6(int port, grpc_resolved_address* wild_out);
53 /* Return the IP port number of a sockaddr */
54 int grpc_sockaddr_get_port(const grpc_resolved_address* addr);
56 /* Set IP port number of a sockaddr */
57 int grpc_sockaddr_set_port(const grpc_resolved_address* addr, int port);
59 /* Converts a sockaddr into a newly-allocated human-readable string.
61 Currently, only the AF_INET and AF_INET6 families are recognized.
62 If the normalize flag is enabled, ::ffff:0.0.0.0/96 IPv6 addresses are
63 displayed as plain IPv4.
65 Usage is similar to gpr_asprintf: returns the number of bytes written
66 (excluding the final '\0'), and *out points to a string which must later be
67 destroyed using gpr_free().
69 In the unlikely event of an error, returns -1 and sets *out to NULL.
70 The existing value of errno is always preserved. */
71 int grpc_sockaddr_to_string(char** out, const grpc_resolved_address* addr,
74 void grpc_string_to_sockaddr(grpc_resolved_address* out, char* addr, int port);
76 /* Returns the URI string corresponding to \a addr */
77 char* grpc_sockaddr_to_uri(const grpc_resolved_address* addr);
79 /* Returns the URI scheme corresponding to \a addr */
80 const char* grpc_sockaddr_get_uri_scheme(const grpc_resolved_address* addr);
82 int grpc_sockaddr_get_family(const grpc_resolved_address* resolved_addr);
84 #endif /* GRPC_CORE_LIB_IOMGR_SOCKADDR_UTILS_H */