1 /* Copyright (c) 2014, 2021, Oracle and/or its affiliates.
2
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License, version 2.0,
5 as published by the Free Software Foundation.
6
7 This program is also distributed with certain software (including
8 but not limited to OpenSSL) that is licensed under separate terms,
9 as designated in a particular file or component or in included license
10 documentation. The authors of MySQL hereby grant you an additional
11 permission to link the program and your derivative works with the
12 separately licensed software that they have included with MySQL.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License, version 2.0, for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22 02110-1301 USA */
23
24 #include "control_events.h"
25
26
27 /*
28 const size_t Uuid::TEXT_LENGTH;
29 const size_t Uuid::BYTE_LENGTH;
30 const size_t Uuid::BIT_LENGTH;
31 */
32 namespace binary_log
33 {
34
35 const int Uuid::bytes_per_section[NUMBER_OF_SECTIONS]=
36 { 4, 2, 2, 2, 6 };
37 const int Uuid::hex_to_byte[]=
38 {
39 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
40 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
41 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
42 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1,
43 -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1,
44 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
45 -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1,
46 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
47 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
48 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
49 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
50 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
51 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
52 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
53 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
54 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
55 };
56
parse(const char * s)57 int Uuid::parse(const char *s)
58 {
59 unsigned char *u= bytes;
60 unsigned char *ss= (unsigned char *)s;
61 for (int i= 0; i < NUMBER_OF_SECTIONS; i++)
62 {
63 if (i > 0)
64 {
65 if (*ss != '-')
66 return 1;
67 ss++;
68 }
69 for (int j= 0; j < bytes_per_section[i]; j++)
70 {
71 int hi= hex_to_byte[*ss];
72 if (hi == -1)
73 return 1;
74 ss++;
75 int lo= hex_to_byte[*ss];
76 if (lo == -1)
77 return 1;
78 ss++;
79 *u= (hi << 4) + lo;
80 u++;
81 }
82 }
83 return 0;
84 }
85
is_valid(const char * s)86 bool Uuid::is_valid(const char *s)
87 {
88 const unsigned char *ss= (const unsigned char *)s;
89 for (int i= 0; i < NUMBER_OF_SECTIONS; i++)
90 {
91 if (i > 0)
92 {
93 if (*ss != '-')
94 return (false);
95 ss++;
96 }
97 for (int j= 0; j < bytes_per_section[i]; j++)
98 {
99 if (hex_to_byte[*ss] == -1)
100 return (false);
101 ss++;
102 if (hex_to_byte[*ss] == -1)
103 return (false);
104 ss++;
105 }
106 }
107 return (true);
108 }
to_string(const unsigned char * bytes_arg,char * buf)109 size_t Uuid::to_string(const unsigned char* bytes_arg, char *buf)
110 {
111 static const char byte_to_hex[]= "0123456789abcdef";
112 const unsigned char *u= bytes_arg;
113 for (int i= 0; i < NUMBER_OF_SECTIONS; i++)
114 {
115 if (i > 0)
116 {
117 *buf= '-';
118 buf++;
119 }
120 for (int j= 0; j < bytes_per_section[i]; j++)
121 {
122 int byte= *u;
123 *buf= byte_to_hex[byte >> 4];
124 buf++;
125 *buf= byte_to_hex[byte & 0xf];
126 buf++;
127 u++;
128 }
129 }
130 *buf= '\0';
131 return TEXT_LENGTH;
132 }
133
134
to_string(char * buf) const135 size_t Uuid::to_string(char *buf) const
136 {
137 return to_string(bytes, buf);
138 }
139 }//namespace binary_log
140