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fox for bug #62472 (mysqlhotcopy errors on databases containing MyISAM)
[packages/mysql.git] / bug580324.patch
1 # name       : bug580324.patch
2 # introduced : 11 or before
3 # maintainer : Oleg
4 #
5 #!!! notice !!!
6 # Any small change to this file in the main branch
7 # should be done or reviewed by the maintainer!
8 --- a/sql/sql_base.cc
9 +++ b/sql/sql_base.cc
10 @@ -314,8 +314,12 @@
11                            const TABLE_LIST *table_list,
12                            bool tmp_table)
13  {
14 -  uint key_length= (uint) (strmov(strmov(key, table_list->db)+1,
15 -                                  table_list->table_name)-key)+1;
16 +  char *db_end= strnmov(key, table_list->db, MAX_DBKEY_LENGTH - 2);
17 +  *db_end++= '\0';
18 +  char *table_end= strnmov(db_end, table_list->table_name,
19 +                           key + MAX_DBKEY_LENGTH - 1 - db_end);
20 +  *table_end++= '\0';
21 +  uint key_length= (uint) (table_end-key);
22    if (tmp_table)
23    {
24      int4store(key + key_length, thd->server_id);
25 --- a/sql/sql_parse.cc
26 +++ b/sql/sql_parse.cc
27 @@ -1116,11 +1116,18 @@
28      break;
29  #else
30    {
31 -    char *fields, *packet_end= packet + packet_length, *arg_end;
32 +    char *fields;
33 +    char *packet_end= packet + packet_length;
34 +    char *wildcard;
35      /* Locked closure of all tables */
36      TABLE_LIST table_list;
37 +    char table_name_buff[NAME_LEN+1];
38      LEX_STRING table_name;
39 +    uint dummy_errors;
40      LEX_STRING db;
41 +
42 +    table_name.str= table_name_buff;
43 +    table_name.length= 0;
44      /*
45        SHOW statements should not add the used tables to the list of tables
46        used in a transaction.
47 @@ -1133,24 +1140,23 @@
48      /*
49        We have name + wildcard in packet, separated by endzero
50      */
51 -    arg_end= strend(packet);
52 -    uint arg_length= arg_end - packet;
53 -
54 -    /* Check given table name length. */
55 -    if (arg_length >= packet_length || arg_length > NAME_LEN)
56 +    wildcard= strend(packet);
57 +    table_name.length= wildcard - packet;
58 +    wildcard++;
59 +    uint query_length= (uint) (packet_end - wildcard); // Don't count end \0
60 +    if (table_name.length > NAME_LEN || query_length > NAME_LEN)
61      {
62        my_message(ER_UNKNOWN_COM_ERROR, ER(ER_UNKNOWN_COM_ERROR), MYF(0));
63        break;
64      }
65 -    thd->convert_string(&table_name, system_charset_info,
66 -                       packet, arg_length, thd->charset());
67 -    if (check_table_name(table_name.str, table_name.length, FALSE))
68 -    {
69 -      /* this is OK due to convert_string() null-terminating the string */
70 -      my_error(ER_WRONG_TABLE_NAME, MYF(0), table_name.str);
71 +    table_name.length= copy_and_convert(table_name.str,
72 +                                        sizeof(table_name_buff)-1,
73 +                                        system_charset_info,
74 +                                        packet, table_name.length,
75 +                                        thd->charset(), &dummy_errors);
76 +    table_name.str[table_name.length]= '\0';
77 +    if (!(fields= (char *) thd->memdup(wildcard, query_length + 1)))
78        break;
79 -    }
80 -    packet= arg_end + 1;
81      mysql_reset_thd_for_next_command(thd);
82      lex_start(thd);
83      /* Must be before we init the table list. */
84 @@ -1175,9 +1181,6 @@
85          table_list.schema_table= schema_table;
86      }
87  
88 -    uint query_length= (uint) (packet_end - packet); // Don't count end \0
89 -    if (!(fields= (char *) thd->memdup(packet, query_length + 1)))
90 -      break;
91      thd->set_query(fields, query_length);
92      general_log_print(thd, command, "%s %s", table_list.table_name, fields);
93  
94 --- a/strings/ctype-utf8.c
95 +++ b/strings/ctype-utf8.c
96 @@ -4212,6 +4212,10 @@
97  {
98    int code;
99    char hex[]= "0123456789abcdef";
100 +
101 +  if (s >= e)
102 +    return MY_CS_TOOSMALL;
103 +
104    if (wc < 128 && filename_safe_char[wc])
105    {
106      *s= (uchar) wc;
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