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mariadb/sql/sql_show.cc
unknown 550c4eb795 Bug #5539 SHOW DATABASES LIKE and symlinks 
sql_show.cc:
  Made change suggested by Serge. REmoved else in mysql_find_files so symlink files fall through to the wildcard check


sql/sql_show.cc:
  Made change suggested by Serge. REmoved else in mysql_find_files so symlink files fall through to the wildcard check
2004-09-25 18:43:07 +02:00

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/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* Function with list databases, tables or fields */
#include "mysql_priv.h"
#include "sql_select.h" // For select_describe
#include "sql_acl.h"
#include "repl_failsafe.h"
#include <my_dir.h>
#ifdef HAVE_BERKELEY_DB
#include "ha_berkeley.h" // For berkeley_show_logs
#endif
static const char *grant_names[]={
"select","insert","update","delete","create","drop","reload","shutdown",
"process","file","grant","references","index","alter"};
static TYPELIB grant_types = { sizeof(grant_names)/sizeof(char **),
"grant_types",
grant_names};
static int
store_create_info(THD *thd, TABLE *table, String *packet);
static void
append_identifier(THD *thd, String *packet, const char *name);
extern struct st_VioSSLAcceptorFd * ssl_acceptor_fd;
/****************************************************************************
** Send list of databases
** A database is a directory in the mysql_data_home directory
****************************************************************************/
int
mysqld_show_dbs(THD *thd,const char *wild)
{
Item_string *field=new Item_string("",0);
List<Item> field_list;
char *end;
List<char> files;
char *file_name;
DBUG_ENTER("mysqld_show_dbs");
field->name=(char*) thd->alloc(20+ (wild ? (uint) strlen(wild)+4: 0));
field->max_length=NAME_LEN;
end=strmov(field->name,"Database");
if (wild && wild[0])
strxmov(end," (",wild,")",NullS);
field_list.push_back(field);
if (send_fields(thd,field_list,1))
DBUG_RETURN(1);
if (mysql_find_files(thd,&files,NullS,mysql_data_home,wild,1))
DBUG_RETURN(1);
List_iterator_fast<char> it(files);
while ((file_name=it++))
{
if (thd->master_access & (DB_ACLS | SHOW_DB_ACL) ||
acl_get(thd->host, thd->ip, (char*) &thd->remote.sin_addr,
thd->priv_user, file_name, 0) ||
(grant_option && !check_grant_db(thd, file_name)))
{
thd->packet.length(0);
net_store_data(&thd->packet, thd->variables.convert_set, file_name);
if (my_net_write(&thd->net, (char*) thd->packet.ptr(),
thd->packet.length()))
DBUG_RETURN(-1);
}
}
send_eof(&thd->net);
DBUG_RETURN(0);
}
/***************************************************************************
** List all open tables in a database
***************************************************************************/
int mysqld_show_open_tables(THD *thd,const char *wild)
{
List<Item> field_list;
OPEN_TABLE_LIST *open_list;
CONVERT *convert=thd->variables.convert_set;
DBUG_ENTER("mysqld_show_open_tables");
field_list.push_back(new Item_empty_string("Database",NAME_LEN));
field_list.push_back(new Item_empty_string("Table",NAME_LEN));
field_list.push_back(new Item_int("In_use",0, 4));
field_list.push_back(new Item_int("Name_locked",0, 4));
if (send_fields(thd,field_list,1))
DBUG_RETURN(1);
if (!(open_list=list_open_tables(thd,wild)) && thd->fatal_error)
DBUG_RETURN(-1);
for (; open_list ; open_list=open_list->next)
{
thd->packet.length(0);
net_store_data(&thd->packet,convert, open_list->db);
net_store_data(&thd->packet,convert, open_list->table);
net_store_data(&thd->packet,open_list->in_use);
net_store_data(&thd->packet,open_list->locked);
if (my_net_write(&thd->net,(char*) thd->packet.ptr(),thd->packet.length()))
{
DBUG_RETURN(-1);
}
}
send_eof(&thd->net);
DBUG_RETURN(0);
}
/***************************************************************************
** List all tables in a database (fast version)
** A table is a .frm file in the current databasedir
***************************************************************************/
int mysqld_show_tables(THD *thd,const char *db,const char *wild)
{
Item_string *field=new Item_string("",0);
List<Item> field_list;
char path[FN_LEN],*end;
List<char> files;
char *file_name;
DBUG_ENTER("mysqld_show_tables");
field->name=(char*) thd->alloc(20+(uint) strlen(db)+(wild ? (uint) strlen(wild)+4:0));
end=strxmov(field->name,"Tables_in_",db,NullS);
if (wild && wild[0])
strxmov(end," (",wild,")",NullS);
field->max_length=NAME_LEN;
(void) sprintf(path,"%s/%s",mysql_data_home,db);
(void) unpack_dirname(path,path);
field_list.push_back(field);
if (send_fields(thd,field_list,1))
DBUG_RETURN(1);
if (mysql_find_files(thd,&files,db,path,wild,0))
DBUG_RETURN(-1);
List_iterator_fast<char> it(files);
while ((file_name=it++))
{
thd->packet.length(0);
net_store_data(&thd->packet, thd->variables.convert_set, file_name);
if (my_net_write(&thd->net,(char*) thd->packet.ptr(),thd->packet.length()))
DBUG_RETURN(-1);
}
send_eof(&thd->net);
DBUG_RETURN(0);
}
int
mysql_find_files(THD *thd,List<char> *files, const char *db,const char *path,
const char *wild, bool dir)
{
uint i;
char *ext;
MY_DIR *dirp;
FILEINFO *file;
uint col_access=thd->col_access;
TABLE_LIST table_list;
DBUG_ENTER("mysql_find_files");
if (wild && !wild[0])
wild=0;
bzero((char*) &table_list,sizeof(table_list));
if (!(dirp = my_dir(path,MYF(MY_WME | (dir ? MY_WANT_STAT : 0)))))
DBUG_RETURN(-1);
for (i=0 ; i < (uint) dirp->number_off_files ; i++)
{
file=dirp->dir_entry+i;
if (dir)
{ /* Return databases */
#ifdef USE_SYMDIR
char *ext;
char buff[FN_REFLEN];
if (my_use_symdir && !strcmp(ext=fn_ext(file->name), ".sym"))
{
/* Only show the sym file if it points to a directory */
char *end;
*ext=0; /* Remove extension */
unpack_dirname(buff, file->name);
end= strend(buff);
if (end != buff && end[-1] == FN_LIBCHAR)
end[-1]= 0; // Remove end FN_LIBCHAR
if (!my_stat(buff, file->mystat, MYF(0)))
continue;
}
#endif
if (file->name[0] == '.' || !MY_S_ISDIR(file->mystat->st_mode) ||
(wild && wild_compare(file->name,wild, 0)))
continue;
}
else
{
// Return only .frm files which aren't temp files.
if (my_strcasecmp(ext=fn_ext(file->name),reg_ext) ||
is_prefix(file->name,tmp_file_prefix))
continue;
*ext=0;
if (wild)
{
if (lower_case_table_names)
{
if (wild_case_compare(file->name,wild))
continue;
}
else if (wild_compare(file->name,wild, 0))
continue;
}
}
/* Don't show tables where we don't have any privileges */
if (db && !(col_access & TABLE_ACLS))
{
table_list.db= (char*) db;
table_list.real_name=file->name;
table_list.grant.privilege=col_access;
if (check_grant(thd,TABLE_ACLS,&table_list,1,1))
continue;
}
if (files->push_back(thd->strdup(file->name)))
{
my_dirend(dirp);
DBUG_RETURN(-1);
}
}
DBUG_PRINT("info",("found: %d files", files->elements));
my_dirend(dirp);
DBUG_RETURN(0);
}
/***************************************************************************
** Extended version of mysqld_show_tables
***************************************************************************/
int mysqld_extend_show_tables(THD *thd,const char *db,const char *wild)
{
Item *item;
List<char> files;
List<Item> field_list;
char path[FN_LEN];
char *file_name;
TABLE *table;
String *packet= &thd->packet;
CONVERT *convert=thd->variables.convert_set;
DBUG_ENTER("mysqld_extend_show_tables");
(void) sprintf(path,"%s/%s",mysql_data_home,db);
(void) unpack_dirname(path,path);
field_list.push_back(item=new Item_empty_string("Name",NAME_LEN));
item->maybe_null=1;
field_list.push_back(item=new Item_empty_string("Type",10));
item->maybe_null=1;
field_list.push_back(item=new Item_empty_string("Row_format",10));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Rows",(longlong) 1,21));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Avg_row_length",(int32) 0,21));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Data_length",(longlong) 1,21));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Max_data_length",(longlong) 1,21));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Index_length",(longlong) 1,21));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Data_free",(longlong) 1,21));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Auto_increment",(longlong) 1,21));
item->maybe_null=1;
field_list.push_back(item=new Item_datetime("Create_time"));
item->maybe_null=1;
field_list.push_back(item=new Item_datetime("Update_time"));
item->maybe_null=1;
field_list.push_back(item=new Item_datetime("Check_time"));
item->maybe_null=1;
field_list.push_back(item=new Item_empty_string("Create_options",255));
item->maybe_null=1;
field_list.push_back(item=new Item_empty_string("Comment",80));
item->maybe_null=1;
if (send_fields(thd,field_list,1))
DBUG_RETURN(1);
if (mysql_find_files(thd,&files,db,path,wild,0))
DBUG_RETURN(-1);
List_iterator_fast<char> it(files);
while ((file_name=it++))
{
TABLE_LIST table_list;
bzero((char*) &table_list,sizeof(table_list));
packet->length(0);
net_store_data(packet,convert, file_name);
table_list.db=(char*) db;
table_list.real_name= table_list.alias= file_name;
if (lower_case_table_names)
casedn_str(file_name);
if (!(table = open_ltable(thd, &table_list, TL_READ)))
{
for (uint i=2 ; i < field_list.elements ; i++)
net_store_null(packet);
net_store_data(packet,convert, thd->net.last_error);
thd->net.last_error[0]=0;
}
else
{
struct tm tm_tmp;
handler *file=table->file;
file->info(HA_STATUS_VARIABLE | HA_STATUS_TIME | HA_STATUS_NO_LOCK);
net_store_data(packet, convert, file->table_type());
net_store_data(packet, convert,
(table->db_options_in_use & HA_OPTION_COMPRESS_RECORD) ?
"Compressed" :
(table->db_options_in_use & HA_OPTION_PACK_RECORD) ?
"Dynamic" : "Fixed");
net_store_data(packet, (longlong) file->records);
net_store_data(packet, (uint32) file->mean_rec_length);
net_store_data(packet, (longlong) file->data_file_length);
if (file->max_data_file_length)
net_store_data(packet, (longlong) file->max_data_file_length);
else
net_store_null(packet);
net_store_data(packet, (longlong) file->index_file_length);
net_store_data(packet, (longlong) file->delete_length);
if (table->found_next_number_field)
{
table->next_number_field=table->found_next_number_field;
table->next_number_field->reset();
file->update_auto_increment();
net_store_data(packet, table->next_number_field->val_int());
table->next_number_field=0;
}
else
net_store_null(packet);
if (!file->create_time)
net_store_null(packet);
else
{
localtime_r(&file->create_time,&tm_tmp);
net_store_data(packet, &tm_tmp);
}
if (!file->update_time)
net_store_null(packet);
else
{
localtime_r(&file->update_time,&tm_tmp);
net_store_data(packet, &tm_tmp);
}
if (!file->check_time)
net_store_null(packet);
else
{
localtime_r(&file->check_time,&tm_tmp);
net_store_data(packet, &tm_tmp);
}
{
char option_buff[350],*ptr;
ptr=option_buff;
if (table->min_rows)
{
ptr=strmov(ptr," min_rows=");
ptr=longlong10_to_str(table->min_rows,ptr,10);
}
if (table->max_rows)
{
ptr=strmov(ptr," max_rows=");
ptr=longlong10_to_str(table->max_rows,ptr,10);
}
if (table->avg_row_length)
{
ptr=strmov(ptr," avg_row_length=");
ptr=longlong10_to_str(table->avg_row_length,ptr,10);
}
if (table->db_create_options & HA_OPTION_PACK_KEYS)
ptr=strmov(ptr," pack_keys=1");
if (table->db_create_options & HA_OPTION_NO_PACK_KEYS)
ptr=strmov(ptr," pack_keys=0");
if (table->db_create_options & HA_OPTION_CHECKSUM)
ptr=strmov(ptr," checksum=1");
if (table->db_create_options & HA_OPTION_DELAY_KEY_WRITE)
ptr=strmov(ptr," delay_key_write=1");
if (table->row_type != ROW_TYPE_DEFAULT)
ptr=strxmov(ptr, " row_format=", ha_row_type[(uint) table->row_type],
NullS);
if (file->raid_type)
{
char buff[100];
sprintf(buff," raid_type=%s raid_chunks=%d raid_chunksize=%ld",
my_raid_type(file->raid_type), file->raid_chunks, file->raid_chunksize/RAID_BLOCK_SIZE);
ptr=strmov(ptr,buff);
}
net_store_data(packet, convert, option_buff+1,
(ptr == option_buff ? 0 : (uint) (ptr-option_buff)-1));
}
{
char *comment=table->file->update_table_comment(table->comment);
net_store_data(packet, comment);
if (comment != table->comment)
my_free(comment,MYF(0));
}
close_thread_tables(thd,0);
}
if (my_net_write(&thd->net,(char*) packet->ptr(),
packet->length()))
DBUG_RETURN(-1);
}
send_eof(&thd->net);
DBUG_RETURN(0);
}
/***************************************************************************
** List all columns in a table_list->real_name
***************************************************************************/
int
mysqld_show_fields(THD *thd, TABLE_LIST *table_list,const char *wild,
bool verbose)
{
TABLE *table;
handler *file;
char tmp[MAX_FIELD_WIDTH];
Item *item;
CONVERT *convert=thd->variables.convert_set;
DBUG_ENTER("mysqld_show_fields");
DBUG_PRINT("enter",("db: %s table: %s",table_list->db,
table_list->real_name));
if (!(table = open_ltable(thd, table_list, TL_UNLOCK)))
{
send_error(&thd->net);
DBUG_RETURN(1);
}
file=table->file;
file->info(HA_STATUS_VARIABLE | HA_STATUS_NO_LOCK);
(void) get_table_grant(thd, table_list);
List<Item> field_list;
field_list.push_back(new Item_empty_string("Field",NAME_LEN));
field_list.push_back(new Item_empty_string("Type",40));
field_list.push_back(new Item_empty_string("Null",1));
field_list.push_back(new Item_empty_string("Key",3));
field_list.push_back(item=new Item_empty_string("Default",NAME_LEN));
item->maybe_null=1;
field_list.push_back(new Item_empty_string("Extra",20));
if (verbose)
field_list.push_back(new Item_empty_string("Privileges",80));
// Send first number of fields and records
{
char *pos;
pos=net_store_length(tmp, (uint) field_list.elements);
pos=net_store_length(pos,(ulonglong) file->records);
(void) my_net_write(&thd->net,tmp,(uint) (pos-tmp));
}
if (send_fields(thd,field_list,0))
DBUG_RETURN(1);
restore_record(table,2); // Get empty record
Field **ptr,*field;
String *packet= &thd->packet;
for (ptr=table->field; (field= *ptr) ; ptr++)
{
if (!wild || !wild[0] || !wild_case_compare(field->field_name,wild))
{
{
byte *pos;
uint flags=field->flags;
String type(tmp,sizeof(tmp));
uint col_access;
bool null_default_value=0;
packet->length(0);
net_store_data(packet,convert,field->field_name);
field->sql_type(type);
net_store_data(packet,convert,type.ptr(),type.length());
/*
Altough TIMESTAMP fields can't contain NULL as its value they
will accept NULL if you will try to insert such value and will
convert it to current TIMESTAMP. So YES here means that NULL
is allowed for assignment but can't be returned.
*/
pos=(byte*) ((flags & NOT_NULL_FLAG) &&
field->type() != FIELD_TYPE_TIMESTAMP ?
"" : "YES");
net_store_data(packet,convert,(const char*) pos);
pos=(byte*) ((field->flags & PRI_KEY_FLAG) ? "PRI" :
(field->flags & UNIQUE_KEY_FLAG) ? "UNI" :
(field->flags & MULTIPLE_KEY_FLAG) ? "MUL":"");
net_store_data(packet,convert,(char*) pos);
/*
We handle first TIMESTAMP column in special way because its
default value is ignored and current timestamp used instead.
*/
if (table->timestamp_field == field ||
field->unireg_check == Field::NEXT_NUMBER)
null_default_value=1;
if (!null_default_value && !field->is_null())
{ // Not null by default
type.set(tmp,sizeof(tmp));
field->val_str(&type,&type);
net_store_data(packet,convert,type.ptr(),type.length());
}
else if (field->maybe_null() || null_default_value)
net_store_null(packet); // Null as default
else
net_store_data(packet,convert,tmp,0);
char *end=tmp;
if (field->unireg_check == Field::NEXT_NUMBER)
end=strmov(tmp,"auto_increment");
net_store_data(packet,convert,tmp,(uint) (end-tmp));
if (verbose)
{
/* Add grant options */
col_access= get_column_grant(thd,table_list,field) & COL_ACLS;
end=tmp;
for (uint bitnr=0; col_access ; col_access>>=1,bitnr++)
{
if (col_access & 1)
{
*end++=',';
end=strmov(end,grant_types.type_names[bitnr]);
}
}
net_store_data(packet,convert, tmp+1,end == tmp ? 0 : (uint) (end-tmp-1));
}
if (my_net_write(&thd->net,(char*) packet->ptr(),packet->length()))
DBUG_RETURN(1);
}
}
}
send_eof(&thd->net);
DBUG_RETURN(0);
}
int
mysqld_show_create(THD *thd, TABLE_LIST *table_list)
{
TABLE *table;
CONVERT *convert=thd->variables.convert_set;
DBUG_ENTER("mysqld_show_create");
DBUG_PRINT("enter",("db: %s table: %s",table_list->db,
table_list->real_name));
/* Only one table for now */
if (!(table = open_ltable(thd, table_list, TL_UNLOCK)))
{
send_error(&thd->net);
DBUG_RETURN(1);
}
char buff[1024];
String packet(buff,sizeof(buff));
packet.length(0);
net_store_data(&packet,convert, table->table_name);
/*
A hack - we need to reserve some space for the length before
we know what it is - let's assume that the length of create table
statement will fit into 3 bytes ( 16 MB max :-) )
*/
ulong store_len_offset = packet.length();
packet.length(store_len_offset + 4);
if (store_create_info(thd, table, &packet))
DBUG_RETURN(-1);
ulong create_len = packet.length() - store_len_offset - 4;
if (create_len > 0x00ffffff) // better readable in HEX ...
{
/*
Just in case somebody manages to create a table
with *that* much stuff in the definition
*/
DBUG_RETURN(1);
}
/*
Now we have to store the length in three bytes, even if it would fit
into fewer bytes, so we cannot use net_store_data() anymore,
and do it ourselves
*/
char* p = (char*)packet.ptr() + store_len_offset;
*p++ = (char) 253; // The client the length is stored using 3-bytes
int3store(p, create_len);
List<Item> field_list;
field_list.push_back(new Item_empty_string("Table",NAME_LEN));
field_list.push_back(new Item_empty_string("Create Table",
max(packet.length(),1024))); // 1024 is for not to confuse old clients
if (send_fields(thd,field_list,1))
DBUG_RETURN(1);
if (my_net_write(&thd->net, (char*)packet.ptr(), packet.length()))
DBUG_RETURN(1);
send_eof(&thd->net);
DBUG_RETURN(0);
}
int
mysqld_show_logs(THD *thd)
{
DBUG_ENTER("mysqld_show_logs");
List<Item> field_list;
field_list.push_back(new Item_empty_string("File",FN_REFLEN));
field_list.push_back(new Item_empty_string("Type",10));
field_list.push_back(new Item_empty_string("Status",10));
if (send_fields(thd,field_list,1))
DBUG_RETURN(1);
#ifdef HAVE_BERKELEY_DB
if (!berkeley_skip && berkeley_show_logs(thd))
DBUG_RETURN(-1);
#endif
send_eof(&thd->net);
DBUG_RETURN(0);
}
int
mysqld_show_keys(THD *thd, TABLE_LIST *table_list)
{
TABLE *table;
char buff[256];
CONVERT *convert=thd->variables.convert_set;
DBUG_ENTER("mysqld_show_keys");
DBUG_PRINT("enter",("db: %s table: %s",table_list->db,
table_list->real_name));
if (!(table = open_ltable(thd, table_list, TL_UNLOCK)))
{
send_error(&thd->net);
DBUG_RETURN(1);
}
List<Item> field_list;
Item *item;
field_list.push_back(new Item_empty_string("Table",NAME_LEN));
field_list.push_back(new Item_int("Non_unique",0,1));
field_list.push_back(new Item_empty_string("Key_name",NAME_LEN));
field_list.push_back(new Item_int("Seq_in_index",0,2));
field_list.push_back(new Item_empty_string("Column_name",NAME_LEN));
field_list.push_back(item=new Item_empty_string("Collation",1));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Cardinality",0,21));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Sub_part",0,3));
item->maybe_null=1;
field_list.push_back(item=new Item_empty_string("Packed",10));
item->maybe_null=1;
field_list.push_back(new Item_empty_string("Null",3));
field_list.push_back(new Item_empty_string("Index_type",16));
field_list.push_back(new Item_empty_string("Comment",255));
item->maybe_null=1;
if (send_fields(thd,field_list,1))
DBUG_RETURN(1);
String *packet= &thd->packet;
KEY *key_info=table->key_info;
table->file->info(HA_STATUS_VARIABLE | HA_STATUS_NO_LOCK | HA_STATUS_TIME);
for (uint i=0 ; i < table->keys ; i++,key_info++)
{
KEY_PART_INFO *key_part= key_info->key_part;
char *end;
for (uint j=0 ; j < key_info->key_parts ; j++,key_part++)
{
packet->length(0);
net_store_data(packet,convert,table->table_name);
net_store_data(packet,convert,((key_info->flags & HA_NOSAME) ? "0" :"1"), 1);
net_store_data(packet,convert,key_info->name);
end=int10_to_str((long) (j+1),(char*) buff,10);
net_store_data(packet,convert,buff,(uint) (end-buff));
net_store_data(packet,convert,
key_part->field ? key_part->field->field_name :
"?unknown field?");
if (table->file->index_flags(i) & HA_READ_ORDER)
net_store_data(packet,convert,
((key_part->key_part_flag & HA_REVERSE_SORT) ?
"D" : "A"), 1);
else
net_store_null(packet); /* purecov: inspected */
KEY *key=table->key_info+i;
if (key->rec_per_key[j])
{
ha_rows records=(table->file->records / key->rec_per_key[j]);
end=longlong10_to_str((longlong) records, buff, 10);
net_store_data(packet,convert,buff,(uint) (end-buff));
}
else
net_store_null(packet);
/* Check if we have a key part that only uses part of the field */
if (!(key_info->flags & HA_FULLTEXT) && (!key_part->field ||
key_part->length != table->field[key_part->fieldnr-1]->key_length()))
{
end=int10_to_str((long) key_part->length, buff,10); /* purecov: inspected */
net_store_data(packet,convert,buff,(uint) (end-buff)); /* purecov: inspected */
}
else
net_store_null(packet);
net_store_null(packet); // No pack_information yet
/* Null flag */
uint flags= key_part->field ? key_part->field->flags : 0;
char *pos=(char*) ((flags & NOT_NULL_FLAG) ? "" : "YES");
net_store_data(packet,convert,(const char*) pos);
net_store_data(packet,convert,table->file->index_type(i));
/* Comment */
if (!(table->keys_in_use & ((key_map) 1 << i)))
net_store_data(packet,convert,"disabled",8);
else
net_store_data(packet,convert,"");
if (my_net_write(&thd->net,(char*) packet->ptr(),packet->length()))
DBUG_RETURN(1); /* purecov: inspected */
}
}
send_eof(&thd->net);
DBUG_RETURN(0);
}
/****************************************************************************
** Return only fields for API mysql_list_fields
** Use "show table wildcard" in mysql instead of this
****************************************************************************/
void
mysqld_list_fields(THD *thd, TABLE_LIST *table_list, const char *wild)
{
TABLE *table;
DBUG_ENTER("mysqld_list_fields");
DBUG_PRINT("enter",("table: %s",table_list->real_name));
if (!(table = open_ltable(thd, table_list, TL_UNLOCK)))
{
send_error(&thd->net);
DBUG_VOID_RETURN;
}
List<Item> field_list;
Field **ptr,*field;
for (ptr=table->field ; (field= *ptr); ptr++)
{
if (!wild || !wild[0] || !wild_case_compare(field->field_name,wild))
field_list.push_back(new Item_field(field));
}
restore_record(table,2); // Get empty record
if (send_fields(thd,field_list,2))
DBUG_VOID_RETURN;
VOID(net_flush(&thd->net));
DBUG_VOID_RETURN;
}
int
mysqld_dump_create_info(THD *thd, TABLE *table, int fd)
{
CONVERT *convert=thd->variables.convert_set;
DBUG_ENTER("mysqld_dump_create_info");
DBUG_PRINT("enter",("table: %s",table->real_name));
String* packet = &thd->packet;
packet->length(0);
if (store_create_info(thd,table,packet))
DBUG_RETURN(-1);
if (convert)
convert->convert((char*) packet->ptr(), packet->length());
if (fd < 0)
{
if (my_net_write(&thd->net, (char*)packet->ptr(), packet->length()))
DBUG_RETURN(-1);
VOID(net_flush(&thd->net));
}
else
{
if (my_write(fd, (const byte*) packet->ptr(), packet->length(),
MYF(MY_WME)))
DBUG_RETURN(-1);
}
DBUG_RETURN(0);
}
static void
append_identifier(THD *thd, String *packet, const char *name)
{
if (thd->options & OPTION_QUOTE_SHOW_CREATE)
{
packet->append("`", 1);
packet->append(name);
packet->append("`", 1);
}
else
{
packet->append(name);
}
}
/* Append directory name (if exists) to CREATE INFO */
static void append_directory(THD *thd, String *packet, const char *dir_type,
const char *filename)
{
uint length;
if (filename && !(thd->sql_mode & MODE_NO_DIR_IN_CREATE))
{
length= dirname_length(filename);
packet->append(' ');
packet->append(dir_type);
packet->append(" DIRECTORY='", 12);
packet->append(filename, length);
packet->append('\'');
}
}
static int
store_create_info(THD *thd, TABLE *table, String *packet)
{
List<Item> field_list;
char tmp[MAX_FIELD_WIDTH], *for_str, buff[128], *end;
String type(tmp, sizeof(tmp));
Field **ptr,*field;
uint primary_key;
KEY *key_info;
handler *file= table->file;
HA_CREATE_INFO create_info;
DBUG_ENTER("store_create_info");
DBUG_PRINT("enter",("table: %s",table->real_name));
restore_record(table,2); // Get empty record
if (table->tmp_table)
packet->append("CREATE TEMPORARY TABLE ", 23);
else
packet->append("CREATE TABLE ", 13);
append_identifier(thd,packet,
(lower_case_table_names == 2 ? table->table_name :
table->real_name));
packet->append(" (\n", 3);
for (ptr=table->field ; (field= *ptr); ptr++)
{
bool has_default;
uint flags = field->flags;
if (ptr != table->field)
packet->append(",\n", 2);
packet->append(" ", 2);
append_identifier(thd,packet,field->field_name);
packet->append(' ');
// check for surprises from the previous call to Field::sql_type()
if (type.ptr() != tmp)
type.set(tmp, sizeof(tmp));
field->sql_type(type);
packet->append(type.ptr(),type.length());
has_default= (field->type() != FIELD_TYPE_BLOB &&
table->timestamp_field != field &&
field->unireg_check != Field::NEXT_NUMBER);
if (flags & NOT_NULL_FLAG)
packet->append(" NOT NULL", 9);
if (has_default)
{
packet->append(" default ", 9);
if (!field->is_null())
{ // Not null by default
type.set(tmp,sizeof(tmp));
field->val_str(&type,&type);
packet->append('\'');
if (type.length())
append_unescaped(packet, type.c_ptr());
packet->append('\'');
}
else if (field->maybe_null())
packet->append("NULL", 4); // Null as default
else
packet->append(tmp,0);
}
if (field->unireg_check == Field::NEXT_NUMBER)
packet->append(" auto_increment", 15 );
}
key_info= table->key_info;
file->info(HA_STATUS_VARIABLE | HA_STATUS_NO_LOCK | HA_STATUS_TIME);
bzero((char*) &create_info, sizeof(create_info));
file->update_create_info(&create_info);
primary_key= table->primary_key;
for (uint i=0 ; i < table->keys ; i++,key_info++)
{
KEY_PART_INFO *key_part= key_info->key_part;
bool found_primary=0;
packet->append(",\n ", 4);
if (i == primary_key && !strcmp(key_info->name,"PRIMARY"))
{
found_primary=1;
packet->append("PRIMARY ", 8);
}
else if (key_info->flags & HA_NOSAME)
packet->append("UNIQUE ", 7);
else if (key_info->flags & HA_FULLTEXT)
packet->append("FULLTEXT ", 9);
packet->append("KEY ", 4);
if (!found_primary)
append_identifier(thd,packet,key_info->name);
packet->append(" (", 2);
for (uint j=0 ; j < key_info->key_parts ; j++,key_part++)
{
if (j)
packet->append(',');
if (key_part->field)
append_identifier(thd,packet,key_part->field->field_name);
if (!key_part->field ||
(key_part->length !=
table->field[key_part->fieldnr-1]->key_length() &&
!(key_info->flags & HA_FULLTEXT)))
{
buff[0] = '(';
char* end=int10_to_str((long) key_part->length, buff + 1,10);
*end++ = ')';
packet->append(buff,(uint) (end-buff));
}
}
packet->append(')');
}
/*
Get possible foreign key definitions stored in InnoDB and append them
to the CREATE TABLE statement
*/
if ((for_str= file->get_foreign_key_create_info()))
{
packet->append(for_str, strlen(for_str));
file->free_foreign_key_create_info(for_str);
}
packet->append("\n)", 2);
packet->append(" TYPE=", 6);
packet->append(file->table_type());
if (table->min_rows)
{
packet->append(" MIN_ROWS=");
end= longlong10_to_str(table->min_rows, buff, 10);
packet->append(buff, (uint) (end- buff));
}
if (table->max_rows)
{
packet->append(" MAX_ROWS=");
end= longlong10_to_str(table->max_rows, buff, 10);
packet->append(buff, (uint) (end - buff));
}
if (table->avg_row_length)
{
packet->append(" AVG_ROW_LENGTH=");
end= longlong10_to_str(table->avg_row_length, buff,10);
packet->append(buff, (uint) (end - buff));
}
if (table->db_create_options & HA_OPTION_PACK_KEYS)
packet->append(" PACK_KEYS=1", 12);
if (table->db_create_options & HA_OPTION_NO_PACK_KEYS)
packet->append(" PACK_KEYS=0", 12);
if (table->db_create_options & HA_OPTION_CHECKSUM)
packet->append(" CHECKSUM=1", 11);
if (table->db_create_options & HA_OPTION_DELAY_KEY_WRITE)
packet->append(" DELAY_KEY_WRITE=1",18);
if (table->row_type != ROW_TYPE_DEFAULT)
{
packet->append(" ROW_FORMAT=",12);
packet->append(ha_row_type[(uint) table->row_type]);
}
table->file->append_create_info(packet);
if (table->comment && table->comment[0])
{
packet->append(" COMMENT='", 10);
append_unescaped(packet, table->comment);
packet->append('\'');
}
if (file->raid_type)
{
uint length;
length= my_snprintf(buff,sizeof(buff),
" RAID_TYPE=%s RAID_CHUNKS=%d RAID_CHUNKSIZE=%ld",
my_raid_type(file->raid_type), file->raid_chunks,
file->raid_chunksize/RAID_BLOCK_SIZE);
packet->append(buff, length);
}
append_directory(thd, packet, "DATA", create_info.data_file_name);
append_directory(thd, packet, "INDEX", create_info.index_file_name);
DBUG_RETURN(0);
}
/****************************************************************************
** Return info about all processes
** returns for each thread: thread id, user, host, db, command, info
****************************************************************************/
class thread_info :public ilink {
public:
static void *operator new(size_t size) {return (void*) sql_alloc((uint) size); }
static void operator delete(void *ptr __attribute__((unused)),
size_t size __attribute__((unused))) {} /*lint -e715 */
ulong thread_id;
time_t start_time;
uint command;
const char *user,*host,*db,*proc_info,*state_info;
char *query;
};
#ifdef __GNUC__
template class I_List<thread_info>;
#endif
#define LIST_PROCESS_HOST_LEN 64
void mysqld_list_processes(THD *thd,const char *user, bool verbose)
{
Item *field;
List<Item> field_list;
I_List<thread_info> thread_infos;
ulong max_query_length= (verbose ? thd->variables.max_allowed_packet :
PROCESS_LIST_WIDTH);
CONVERT *convert=thd->variables.convert_set;
DBUG_ENTER("mysqld_list_processes");
field_list.push_back(new Item_int("Id",0,7));
field_list.push_back(new Item_empty_string("User",16));
field_list.push_back(new Item_empty_string("Host",LIST_PROCESS_HOST_LEN));
field_list.push_back(field=new Item_empty_string("db",NAME_LEN));
field->maybe_null=1;
field_list.push_back(new Item_empty_string("Command",16));
field_list.push_back(new Item_empty_string("Time",7));
field_list.push_back(field=new Item_empty_string("State",30));
field->maybe_null=1;
field_list.push_back(field=new Item_empty_string("Info",max_query_length));
field->maybe_null=1;
if (send_fields(thd,field_list,1))
DBUG_VOID_RETURN;
VOID(pthread_mutex_lock(&LOCK_thread_count)); // For unlink from list
if (!thd->killed)
{
I_List_iterator<THD> it(threads);
THD *tmp;
while ((tmp=it++))
{
struct st_my_thread_var *mysys_var;
if ((tmp->net.vio || tmp->system_thread) &&
(!user || (tmp->user && !strcmp(tmp->user,user))))
{
thread_info *thd_info=new thread_info;
thd_info->thread_id=tmp->thread_id;
thd_info->user=thd->strdup(tmp->user ? tmp->user :
(tmp->system_thread ?
"system user" : "unauthenticated user"));
if (tmp->peer_port && (tmp->host || tmp->ip) && thd->host_or_ip[0])
{
if ((thd_info->host= thd->alloc(LIST_PROCESS_HOST_LEN+1)))
my_snprintf((char *) thd_info->host, LIST_PROCESS_HOST_LEN,
"%s:%u", tmp->host_or_ip, tmp->peer_port);
}
else
thd_info->host= thd->strdup(tmp->host_or_ip);
if ((thd_info->db=tmp->db)) // Safe test
thd_info->db=thd->strdup(thd_info->db);
thd_info->command=(int) tmp->command;
if ((mysys_var= tmp->mysys_var))
pthread_mutex_lock(&mysys_var->mutex);
thd_info->proc_info= (char*) (tmp->killed ? "Killed" : 0);
thd_info->state_info= (char*) (tmp->locked ? "Locked" :
tmp->net.reading_or_writing ?
(tmp->net.reading_or_writing == 2 ?
"Writing to net" :
thd_info->command == COM_SLEEP ? "" :
"Reading from net") :
tmp->proc_info ? tmp->proc_info :
tmp->mysys_var &&
tmp->mysys_var->current_cond ?
"Waiting on cond" : NullS);
if (mysys_var)
pthread_mutex_unlock(&mysys_var->mutex);
#if !defined(DONT_USE_THR_ALARM) && ! defined(SCO)
if (pthread_kill(tmp->real_id,0))
tmp->proc_info="*** DEAD ***"; // This shouldn't happen
#endif
#ifdef EXTRA_DEBUG
thd_info->start_time= tmp->time_after_lock;
#else
thd_info->start_time= tmp->start_time;
#endif
thd_info->query=0;
if (tmp->query)
{
/*
query_length is always set to 0 when we set query = NULL; see
the comment in sql_class.h why this prevents crashes in possible
races with query_length
*/
uint length= min(max_query_length, tmp->query_length);
thd_info->query=(char*) thd->strmake(tmp->query,length);
}
thread_infos.append(thd_info);
}
}
}
VOID(pthread_mutex_unlock(&LOCK_thread_count));
thread_info *thd_info;
String *packet= &thd->packet;
while ((thd_info=thread_infos.get()))
{
char buff[20],*end;
packet->length(0);
end=int10_to_str((long) thd_info->thread_id, buff,10);
net_store_data(packet,convert,buff,(uint) (end-buff));
net_store_data(packet,convert,thd_info->user);
net_store_data(packet,convert,thd_info->host);
if (thd_info->db)
net_store_data(packet,convert,thd_info->db);
else
net_store_null(packet);
if (thd_info->proc_info)
net_store_data(packet,convert,thd_info->proc_info);
else
net_store_data(packet,convert,command_name[thd_info->command]);
if (thd_info->start_time)
net_store_data(packet,
(uint32) (time((time_t*) 0) - thd_info->start_time));
else
net_store_null(packet);
if (thd_info->state_info)
net_store_data(packet,convert,thd_info->state_info);
else
net_store_null(packet);
if (thd_info->query)
net_store_data(packet,convert,thd_info->query);
else
net_store_null(packet);
if (my_net_write(&thd->net,(char*) packet->ptr(),packet->length()))
break; /* purecov: inspected */
}
send_eof(&thd->net);
DBUG_VOID_RETURN;
}
/*****************************************************************************
** Status functions
*****************************************************************************/
int mysqld_show(THD *thd, const char *wild, show_var_st *variables,
enum enum_var_type value_type,
pthread_mutex_t *mutex)
{
char buff[8192];
String packet2(buff,sizeof(buff));
List<Item> field_list;
CONVERT *convert=thd->variables.convert_set;
DBUG_ENTER("mysqld_show");
field_list.push_back(new Item_empty_string("Variable_name",30));
field_list.push_back(new Item_empty_string("Value",256));
if (send_fields(thd,field_list,1))
DBUG_RETURN(1); /* purecov: inspected */
pthread_mutex_lock(mutex);
for (; variables->name; variables++)
{
if (!(wild && wild[0] && wild_case_compare(variables->name,wild)))
{
packet2.length(0);
net_store_data(&packet2,convert,variables->name);
SHOW_TYPE show_type=variables->type;
char *value=variables->value;
if (show_type == SHOW_SYS)
{
show_type= ((sys_var*) value)->type();
value= (char*) ((sys_var*) value)->value_ptr(thd, value_type);
}
switch (show_type) {
case SHOW_LONG:
case SHOW_LONG_CONST:
net_store_data(&packet2,(uint32) *(ulong*) value);
break;
case SHOW_LONGLONG:
net_store_data(&packet2,(longlong) *(longlong*) value);
break;
case SHOW_HA_ROWS:
net_store_data(&packet2,(longlong) *(ha_rows*) value);
break;
case SHOW_BOOL:
net_store_data(&packet2,(ulong) *(bool*) value ? "ON" : "OFF");
break;
case SHOW_MY_BOOL:
net_store_data(&packet2,(ulong) *(my_bool*) value ? "ON" : "OFF");
break;
case SHOW_INT_CONST:
case SHOW_INT:
net_store_data(&packet2,(uint32) *(int*) value);
break;
case SHOW_HAVE:
{
SHOW_COMP_OPTION tmp= *(SHOW_COMP_OPTION*) value;
net_store_data(&packet2, (tmp == SHOW_OPTION_NO ? "NO" :
tmp == SHOW_OPTION_YES ? "YES" :
"DISABLED"));
break;
}
case SHOW_CHAR:
net_store_data(&packet2,convert, value);
break;
case SHOW_STARTTIME:
net_store_data(&packet2,(uint32) (thd->query_start() - start_time));
break;
case SHOW_QUESTION:
net_store_data(&packet2,(uint32) thd->query_id);
break;
case SHOW_RPL_STATUS:
net_store_data(&packet2, rpl_status_type[(int)rpl_status]);
break;
#ifdef HAVE_REPLICATION
case SHOW_SLAVE_RUNNING:
{
pthread_mutex_lock(&LOCK_active_mi);
net_store_data(&packet2, (active_mi->slave_running &&
active_mi->rli.slave_running)
? "ON" : "OFF");
pthread_mutex_unlock(&LOCK_active_mi);
break;
}
#endif
case SHOW_OPENTABLES:
net_store_data(&packet2,(uint32) cached_tables());
break;
case SHOW_CHAR_PTR:
{
value= *(char**) value;
net_store_data(&packet2,convert, value ? value : "");
break;
}
#ifdef HAVE_OPENSSL
/* First group - functions relying on CTX */
case SHOW_SSL_CTX_SESS_ACCEPT:
net_store_data(&packet2,(uint32)
(!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_accept(ssl_acceptor_fd->ssl_context)));
break;
case SHOW_SSL_CTX_SESS_ACCEPT_GOOD:
net_store_data(&packet2,(uint32)
(!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_accept_good(ssl_acceptor_fd->ssl_context)));
break;
case SHOW_SSL_CTX_SESS_CONNECT_GOOD:
net_store_data(&packet2,(uint32)
(!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_connect_good(ssl_acceptor_fd->ssl_context)));
break;
case SHOW_SSL_CTX_SESS_ACCEPT_RENEGOTIATE:
net_store_data(&packet2,(uint32)
(!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_accept_renegotiate(ssl_acceptor_fd->ssl_context)));
break;
case SHOW_SSL_CTX_SESS_CONNECT_RENEGOTIATE:
net_store_data(&packet2,(uint32)
(!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_connect_renegotiate(ssl_acceptor_fd->ssl_context)));
break;
case SHOW_SSL_CTX_SESS_CB_HITS:
net_store_data(&packet2,(uint32)
(!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_cb_hits(ssl_acceptor_fd->ssl_context)));
break;
case SHOW_SSL_CTX_SESS_HITS:
net_store_data(&packet2,(uint32)
(!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_hits(ssl_acceptor_fd->ssl_context)));
break;
case SHOW_SSL_CTX_SESS_CACHE_FULL:
net_store_data(&packet2,(uint32)
(!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_cache_full(ssl_acceptor_fd->ssl_context)));
break;
case SHOW_SSL_CTX_SESS_MISSES:
net_store_data(&packet2,(uint32)
(!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_misses(ssl_acceptor_fd->ssl_context)));
break;
case SHOW_SSL_CTX_SESS_TIMEOUTS:
net_store_data(&packet2,(uint32)
(!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_timeouts(ssl_acceptor_fd->ssl_context)));
break;
case SHOW_SSL_CTX_SESS_NUMBER:
net_store_data(&packet2,(uint32)
(!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_number(ssl_acceptor_fd->ssl_context)));
break;
case SHOW_SSL_CTX_SESS_CONNECT:
net_store_data(&packet2,(uint32)
(!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_connect(ssl_acceptor_fd->ssl_context)));
break;
case SHOW_SSL_CTX_SESS_GET_CACHE_SIZE:
net_store_data(&packet2,(uint32)
(!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_get_cache_size(ssl_acceptor_fd->ssl_context)));
break;
case SHOW_SSL_CTX_GET_VERIFY_MODE:
net_store_data(&packet2,(uint32)
(!ssl_acceptor_fd ? 0 :
SSL_CTX_get_verify_mode(ssl_acceptor_fd->ssl_context)));
break;
case SHOW_SSL_CTX_GET_VERIFY_DEPTH:
net_store_data(&packet2,(uint32)
(!ssl_acceptor_fd ? 0 :
SSL_CTX_get_verify_depth(ssl_acceptor_fd->ssl_context)));
break;
case SHOW_SSL_CTX_GET_SESSION_CACHE_MODE:
if (!ssl_acceptor_fd)
{
net_store_data(&packet2,"NONE" );
break;
}
switch (SSL_CTX_get_session_cache_mode(ssl_acceptor_fd->ssl_context))
{
case SSL_SESS_CACHE_OFF:
net_store_data(&packet2,"OFF" );
break;
case SSL_SESS_CACHE_CLIENT:
net_store_data(&packet2,"CLIENT" );
break;
case SSL_SESS_CACHE_SERVER:
net_store_data(&packet2,"SERVER" );
break;
case SSL_SESS_CACHE_BOTH:
net_store_data(&packet2,"BOTH" );
break;
case SSL_SESS_CACHE_NO_AUTO_CLEAR:
net_store_data(&packet2,"NO_AUTO_CLEAR" );
break;
case SSL_SESS_CACHE_NO_INTERNAL_LOOKUP:
net_store_data(&packet2,"NO_INTERNAL_LOOKUP" );
break;
default:
net_store_data(&packet2,"Unknown");
break;
}
break;
/* First group - functions relying on SSL */
case SHOW_SSL_GET_VERSION:
net_store_data(&packet2, thd->net.vio->ssl_arg ?
SSL_get_version((SSL*) thd->net.vio->ssl_arg) : "");
break;
case SHOW_SSL_SESSION_REUSED:
net_store_data(&packet2,(uint32) (thd->net.vio->ssl_arg ?
SSL_session_reused((SSL*) thd->net.vio->ssl_arg) : 0));
break;
case SHOW_SSL_GET_DEFAULT_TIMEOUT:
net_store_data(&packet2,(uint32) (thd->net.vio->ssl_arg ?
SSL_get_default_timeout((SSL*) thd->net.vio->ssl_arg) :
0));
break;
case SHOW_SSL_GET_VERIFY_MODE:
net_store_data(&packet2,(uint32) (thd->net.vio->ssl_arg ?
SSL_get_verify_mode((SSL*) thd->net.vio->ssl_arg):0));
break;
case SHOW_SSL_GET_VERIFY_DEPTH:
net_store_data(&packet2,(uint32) (thd->net.vio->ssl_arg ?
SSL_get_verify_depth((SSL*) thd->net.vio->ssl_arg):0));
break;
case SHOW_SSL_GET_CIPHER:
net_store_data(&packet2, thd->net.vio->ssl_arg ?
SSL_get_cipher((SSL*) thd->net.vio->ssl_arg) : "");
break;
case SHOW_SSL_GET_CIPHER_LIST:
if (thd->net.vio->ssl_arg)
{
char buf[1024], *pos;
pos=buf;
for (int i=0 ; i++ ;)
{
const char *p=SSL_get_cipher_list((SSL*) thd->net.vio->ssl_arg,i);
if (p == NULL)
break;
pos=strmov(pos, p);
*pos++= ':';
}
if (pos != buf)
pos--; // Remove last ':'
*pos=0;
net_store_data(&packet2, buf);
}
else
net_store_data(&packet2, "");
break;
#endif /* HAVE_OPENSSL */
case SHOW_UNDEF: // Show never happen
case SHOW_SYS:
net_store_data(&packet2, ""); // Safety
break;
}
if (my_net_write(&thd->net, (char*) packet2.ptr(),packet2.length()))
goto err; /* purecov: inspected */
}
}
pthread_mutex_unlock(mutex);
send_eof(&thd->net);
DBUG_RETURN(0);
err:
pthread_mutex_unlock(mutex);
DBUG_RETURN(1);
}
#ifdef __GNUC__
template class List_iterator_fast<char>;
template class List<char>;
#endif
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