MySQL  8.0.27
Source Code Documentation
my_hostname.h
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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 */
42 static 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 */
48 static constexpr int PORTNUMBER_LENGTH = 5;
49 
50 /**
51  Number of bytes required to hold "hostname:portnumber"
52 */
53 static constexpr int HOST_AND_PORT_LENGTH =
55 
56 #endif /* MY_HOSTNAME_INCLUDED */
static constexpr int HOST_AND_PORT_LENGTH
Number of bytes required to hold "hostname:portnumber".
Definition: my_hostname.h:53
static constexpr int HOSTNAME_LENGTH
Definition: my_hostname.h:42
static constexpr int PORTNUMBER_LENGTH
Definition: my_hostname.h:48