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host_port.h
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1 /*
2 *
3 * Copyright 2015, Google Inc.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met:
9 *
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * * Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following disclaimer
14 * in the documentation and/or other materials provided with the
15 * distribution.
16 * * Neither the name of Google Inc. nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 *
32 */
33
34 #ifndef GRPC_SUPPORT_HOST_PORT_H
35 #define GRPC_SUPPORT_HOST_PORT_H
36
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40
41 /* Given a host and port, creates a newly-allocated string of the form
42 "host:port" or "[ho:st]:port", depending on whether the host contains colons
43 like an IPv6 literal. If the host is already bracketed, then additional
44 brackets will not be added.
45
46 Usage is similar to gpr_asprintf: returns the number of bytes written
47 (excluding the final '\0'), and *out points to a string which must later be
48 destroyed using gpr_free().
49
50 In the unlikely event of an error, returns -1 and sets *out to NULL. */
51 int gpr_join_host_port(char **out, const char *host, int port);
52
53 /* Given a name in the form "host:port" or "[ho:st]:port", split into hostname
54 and port number, into newly allocated strings, which must later be
55 destroyed using gpr_free().
56 Return 1 on success, 0 on failure. Guarantees *host and *port == NULL on
57 failure. */
58 int gpr_split_host_port(const char *name, char **host, char **port);
59
60 #ifdef __cplusplus
61 }
62 #endif
63
64 #endif /* GRPC_SUPPORT_HOST_PORT_H */
gpr_split_host_port
int gpr_split_host_port(const char *name, char **host, char **port)
Definition: host_port.c:53
gpr_join_host_port
int gpr_join_host_port(char **out, const char *host, int port)
Definition: host_port.c:43