MySQL 8.1.0
Source Code Documentation
my_hostname.h
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1/*
2 * Copyright (c) 2019, 2023, Oracle and/or its affiliates.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License, version 2.0,
6 * as published by the Free Software Foundation.
7 *
8 * This program is also distributed with certain software (including
9 * but not limited to OpenSSL) that is licensed under separate terms,
10 * as designated in a particular file or component or in included license
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13 * separately licensed software that they have included with MySQL.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License, version 2.0, for more details.
19 *
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21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 */
24
25/**
26 @file include/my_hostname.h
27 Common definition used by mysys, performance schema and server & client.
28*/
29
30#ifndef MY_HOSTNAME_INCLUDED
31#define MY_HOSTNAME_INCLUDED
32
33/*
34 Note that this is the actual length available, and that room
35 for a trailing '\0' is not included in this size.
36
37 The metadata columns storing hostname use single byte character
38 as they are using ASCII character set.
39
40 pre 8.0.17: 60 characters
41*/
42static constexpr int HOSTNAME_LENGTH = 255;
43
44/*
45 Number of characters that a port number can have.
46 As per rfc6335 section 6, the range is 0 to 65535.
47*/
48static constexpr int PORTNUMBER_LENGTH = 5;
49
50/**
51 Length of "hostname:portnumber".
52 This does not include the trailing '\0'.
53*/
54static constexpr int HOST_AND_PORT_LENGTH =
56
57#endif /* MY_HOSTNAME_INCLUDED */
static constexpr int HOST_AND_PORT_LENGTH
Length of "hostname:portnumber".
Definition: my_hostname.h:54
static constexpr int HOSTNAME_LENGTH
Definition: my_hostname.h:42
static constexpr int PORTNUMBER_LENGTH
Definition: my_hostname.h:48