Merge alik.:/mnt/raid/alik/MySQL/devel/5.0-tree

into  alik.:/mnt/raid/alik/MySQL/devel/5.0-rt-merged

configure.in

@@ -7,7 +7,7 @@ AC_INIT(sql/mysqld.cc)
 AC_CANONICAL_SYSTEM
 # The Docs Makefile.am parses this line!
 # remember to also change ndb version below and update version.c in ndb
-AM_INIT_AUTOMAKE(mysql, 5.0.25)
+AM_INIT_AUTOMAKE(mysql, 5.0.26)
 AM_CONFIG_HEADER(config.h)
 
 PROTOCOL_VERSION=10
@@ -19,7 +19,7 @@ SHARED_LIB_VERSION=$SHARED_LIB_MAJOR_VERSION:0:0
 # ndb version
 NDB_VERSION_MAJOR=5
 NDB_VERSION_MINOR=0
-NDB_VERSION_BUILD=25
+NDB_VERSION_BUILD=26
 NDB_VERSION_STATUS=""
 
 # Set all version vars based on $VERSION. How do we do this more elegant ?
@@ -2826,8 +2826,9 @@ AC_CONFIG_FILES(Makefile extra/Makefile mysys/Makefile dnl
  include/mysql_version.h dnl
  cmd-line-utils/Makefile dnl
  cmd-line-utils/libedit/Makefile dnl
+ win/Makefile dnl
  zlib/Makefile dnl
- cmd-line-utils/readline/Makefile win/Makefile)
+ cmd-line-utils/readline/Makefile)
  AC_CONFIG_COMMANDS([default], , test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h)
  AC_OUTPUT
 

include/mysql_com.h

@@ -26,6 +26,9 @@
 #define USERNAME_LENGTH 16
 #define SERVER_VERSION_LENGTH 60
 #define SQLSTATE_LENGTH 5
+#define SYSTEM_CHARSET_MBMAXLEN 3
+#define NAME_BYTE_LEN   NAME_LEN*SYSTEM_CHARSET_MBMAXLEN
+#define USERNAME_BYTE_LENGTH USERNAME_LENGTH*SYSTEM_CHARSET_MBMAXLEN
 
 /*
   USER_HOST_BUFF_SIZE -- length of string buffer, that is enough to contain
@@ -33,7 +36,7 @@
   MySQL standard format:
   user_name_part@host_name_part\0
 */
-#define USER_HOST_BUFF_SIZE HOSTNAME_LENGTH + USERNAME_LENGTH + 2
+#define USER_HOST_BUFF_SIZE HOSTNAME_LENGTH + USERNAME_BYTE_LENGTH + 2
 
 #define LOCAL_HOST	"localhost"
 #define LOCAL_HOST_NAMEDPIPE "."

mysql-test/include/loaddata_autocom.inc

+# Test if the engine does autocommit in LOAD DATA INFILE, or not
+# (NDB wants to do, others don't).
+
+eval SET SESSION STORAGE_ENGINE = $engine_type;
+
+--disable_warnings
+drop table if exists t1;
+--enable_warnings
+
+create table t1 (a text, b text);
+start transaction;
+load data infile '../std_data_ln/loaddata2.dat' into table t1 fields terminated by ',' enclosed by '''';
+commit;
+select count(*) from t1;
+truncate table t1;
+start transaction;
+load data infile '../std_data_ln/loaddata2.dat' into table t1 fields terminated by ',' enclosed by '''';
+rollback;
+select count(*) from t1;
+
+drop table t1;

mysql-test/r/ctype_utf8.result

@@ -1340,6 +1340,19 @@ select a from t1 group by a;
 a
 e
 drop table t1;
+set names utf8;
+grant select on test.* to юзер_юзер@localhost;
+user()
+юзер_юзер@localhost
+revoke all on test.* from юзер_юзер@localhost;
+drop user юзер_юзер@localhost;
+create database имя_базы_в_кодировке_утф8_длиной_больше_чем_45;
+use имя_базы_в_кодировке_утф8_длиной_больше_чем_45;
+select database();
+database()
+имя_базы_в_кодировке_утф8_длиной_больше_чем_45
+drop database имя_базы_в_кодировке_утф8_длиной_больше_чем_45;
+use test;
 CREATE TABLE t1(id varchar(20) NOT NULL) DEFAULT CHARSET=utf8;
 INSERT INTO t1 VALUES ('xxx'), ('aa'), ('yyy'), ('aa');
 SELECT id FROM t1;

mysql-test/r/loaddata_autocom_innodb.result

+SET SESSION STORAGE_ENGINE = InnoDB;
+drop table if exists t1;
+create table t1 (a text, b text);
+start transaction;
+load data infile '../std_data_ln/loaddata2.dat' into table t1 fields terminated by ',' enclosed by '''';
+Warnings:
+Warning	1261	Row 3 doesn't contain data for all columns
+commit;
+select count(*) from t1;
+count(*)
+4
+truncate table t1;
+start transaction;
+load data infile '../std_data_ln/loaddata2.dat' into table t1 fields terminated by ',' enclosed by '''';
+Warnings:
+Warning	1261	Row 3 doesn't contain data for all columns
+rollback;
+select count(*) from t1;
+count(*)
+0
+drop table t1;

mysql-test/r/loaddata_autocom_ndb.result

+SET SESSION STORAGE_ENGINE = ndbcluster;
+drop table if exists t1;
+create table t1 (a text, b text);
+start transaction;
+load data infile '../std_data_ln/loaddata2.dat' into table t1 fields terminated by ',' enclosed by '''';
+Warnings:
+Warning	1261	Row 3 doesn't contain data for all columns
+commit;
+select count(*) from t1;
+count(*)
+4
+truncate table t1;
+start transaction;
+load data infile '../std_data_ln/loaddata2.dat' into table t1 fields terminated by ',' enclosed by '''';
+Warnings:
+Warning	1261	Row 3 doesn't contain data for all columns
+rollback;
+Warnings:
+Warning	1196	Some non-transactional changed tables couldn't be rolled back
+select count(*) from t1;
+count(*)
+4
+drop table t1;

mysql-test/r/rpl_ndb_innodb_trans.result

+stop slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+reset master;
+reset slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+start slave;
+create table t1 (a int, unique(a)) engine=ndbcluster;
+create table t2 (a int, unique(a)) engine=innodb;
+begin;
+insert into t1 values(1);
+insert into t2 values(1);
+rollback;
+select count(*) from t1;
+count(*)
+0
+select count(*) from t2;
+count(*)
+0
+select count(*) from t1;
+count(*)
+0
+select count(*) from t2;
+count(*)
+0
+begin;
+load data infile '../std_data_ln/rpl_loaddata.dat' into table t2;
+Warnings:
+Warning	1262	Row 1 was truncated; it contained more data than there were input columns
+Warning	1262	Row 2 was truncated; it contained more data than there were input columns
+load data infile '../std_data_ln/rpl_loaddata.dat' into table t1;
+Warnings:
+Warning	1262	Row 1 was truncated; it contained more data than there were input columns
+Warning	1262	Row 2 was truncated; it contained more data than there were input columns
+rollback;
+Warnings:
+Warning	1196	Some non-transactional changed tables couldn't be rolled back
+select count(*) from t1;
+count(*)
+2
+select count(*) from t2;
+count(*)
+0
+select count(*) from t1;
+count(*)
+2
+select count(*) from t2;
+count(*)
+0
+delete from t1;
+delete from t2;
+begin;
+load data infile '../std_data_ln/rpl_loaddata.dat' into table t2;
+Warnings:
+Warning	1262	Row 1 was truncated; it contained more data than there were input columns
+Warning	1262	Row 2 was truncated; it contained more data than there were input columns
+load data infile '../std_data_ln/rpl_loaddata.dat' into table t1;
+Warnings:
+Warning	1262	Row 1 was truncated; it contained more data than there were input columns
+Warning	1262	Row 2 was truncated; it contained more data than there were input columns
+rollback;
+Warnings:
+Warning	1196	Some non-transactional changed tables couldn't be rolled back
+select count(*) from t1;
+count(*)
+2
+select count(*) from t2;
+count(*)
+0
+select count(*) from t1;
+count(*)
+2
+select count(*) from t2;
+count(*)
+0
+delete from t1;
+delete from t2;
+begin;
+insert into t2 values(3),(4);
+insert into t1 values(3),(4);
+load data infile '../std_data_ln/rpl_loaddata.dat' into table t2;
+Warnings:
+Warning	1262	Row 1 was truncated; it contained more data than there were input columns
+Warning	1262	Row 2 was truncated; it contained more data than there were input columns
+load data infile '../std_data_ln/rpl_loaddata.dat' into table t1;
+Warnings:
+Warning	1262	Row 1 was truncated; it contained more data than there were input columns
+Warning	1262	Row 2 was truncated; it contained more data than there were input columns
+rollback;
+Warnings:
+Warning	1196	Some non-transactional changed tables couldn't be rolled back
+select count(*) from t1;
+count(*)
+4
+select count(*) from t2;
+count(*)
+0
+select count(*) from t1;
+count(*)
+4
+select count(*) from t2;
+count(*)
+0
+drop table t1,t2;

mysql-test/t/ctype_utf8.test

@@ -1069,6 +1069,23 @@ explain select a from t1 group by a;
 select a from t1 group by a;
 drop table t1;
 
+#
+# Bug#20393: User name truncation in mysql client
+# Bug#21432: Database/Table name limited to 64 bytes, not chars, problems with multi-byte
+#
+set names utf8;
+#create user юзер_юзер@localhost;
+grant select on test.* to юзер_юзер@localhost;
+--exec $MYSQL --default-character-set=utf8 --user=юзер_юзер -e "select user()"
+revoke all on test.* from юзер_юзер@localhost;
+drop user юзер_юзер@localhost;
+
+create database имя_базы_в_кодировке_утф8_длиной_больше_чем_45;
+use имя_базы_в_кодировке_утф8_длиной_больше_чем_45;
+select database();
+drop database имя_базы_в_кодировке_утф8_длиной_больше_чем_45;
+use test;
+
 # End of 4.1 tests
 
 #

mysql-test/t/loaddata_autocom_innodb.test

+--source include/have_innodb.inc
+let $engine_type= InnoDB;
+
+--source include/loaddata_autocom.inc

mysql-test/t/loaddata_autocom_ndb.test

+--source include/have_ndb.inc
+let $engine_type=ndbcluster;
+
+--source include/loaddata_autocom.inc

mysql-test/t/rpl_ndb_innodb_trans-slave.opt

+--innodb

mysql-test/t/rpl_ndb_innodb_trans.test

+# Test of a transaction mixing the two engines
+
+-- source include/have_ndb.inc
+-- source include/have_innodb.inc
+-- source include/master-slave.inc
+
+create table t1 (a int, unique(a)) engine=ndbcluster;
+create table t2 (a int, unique(a)) engine=innodb;
+
+
+begin;
+insert into t1 values(1);
+insert into t2 values(1);
+rollback;
+
+select count(*) from t1;
+select count(*) from t2;
+sync_slave_with_master;
+select count(*) from t1;
+select count(*) from t2;
+connection master;
+
+begin;
+load data infile '../std_data_ln/rpl_loaddata.dat' into table t2;
+load data infile '../std_data_ln/rpl_loaddata.dat' into table t1;
+rollback;
+
+select count(*) from t1;
+select count(*) from t2;
+sync_slave_with_master;
+select count(*) from t1;
+select count(*) from t2;
+connection master;
+
+delete from t1;
+delete from t2;
+begin;
+load data infile '../std_data_ln/rpl_loaddata.dat' into table t2;
+load data infile '../std_data_ln/rpl_loaddata.dat' into table t1;
+rollback;
+
+select count(*) from t1;
+select count(*) from t2;
+sync_slave_with_master;
+select count(*) from t1;
+select count(*) from t2;
+connection master;
+
+delete from t1;
+delete from t2;
+begin;
+insert into t2 values(3),(4);
+insert into t1 values(3),(4);
+load data infile '../std_data_ln/rpl_loaddata.dat' into table t2;
+load data infile '../std_data_ln/rpl_loaddata.dat' into table t1;
+rollback;
+
+select count(*) from t1;
+select count(*) from t2;
+sync_slave_with_master;
+select count(*) from t1;
+select count(*) from t2;
+connection master;
+
+drop table t1,t2;
+sync_slave_with_master;

sql-common/client.c

@@ -1758,7 +1758,7 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
 		       const char *passwd, const char *db,
 		       uint port, const char *unix_socket,ulong client_flag)
 {
-  char		buff[NAME_LEN+USERNAME_LENGTH+100];
+  char		buff[NAME_BYTE_LEN+USERNAME_BYTE_LENGTH+100];
   char		*end,*host_info;
   my_socket	sock;
   in_addr_t	ip_addr;
@@ -2217,7 +2217,7 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
 		     mysql->server_status, client_flag));
   /* This needs to be changed as it's not useful with big packets */
   if (user && user[0])
-    strmake(end,user,USERNAME_LENGTH);          /* Max user name */
+    strmake(end,user,USERNAME_BYTE_LENGTH);          /* Max user name */
   else
     read_user_name((char*) end);
 
@@ -2247,7 +2247,7 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
   /* Add database if needed */
   if (db && (mysql->server_capabilities & CLIENT_CONNECT_WITH_DB))
   {
-    end= strmake(end, db, NAME_LEN) + 1;
+    end= strmake(end, db, NAME_BYTE_LEN) + 1;
     mysql->db= my_strdup(db,MYF(MY_WME));
     db= 0;
   }

sql/ha_ndbcluster.cc

@@ -3526,7 +3526,14 @@ int ha_ndbcluster::external_lock(THD *thd, int lock_type)
   if (lock_type != F_UNLCK)
   {
     DBUG_PRINT("info", ("lock_type != F_UNLCK"));
-    if (!thd->transaction.on)
+    if (thd->lex->sql_command == SQLCOM_LOAD)
+    {
+      m_transaction_on= FALSE;
+      /* Would be simpler if has_transactions() didn't always say "yes" */
+      thd->options|= OPTION_STATUS_NO_TRANS_UPDATE;
+      thd->no_trans_update= TRUE;
+    }
+    else if (!thd->transaction.on)
       m_transaction_on= FALSE;
     else
       m_transaction_on= thd->variables.ndb_use_transactions;

sql/mysql_priv.h

@@ -566,7 +566,8 @@ void get_default_definer(THD *thd, LEX_USER *definer);
 LEX_USER *create_default_definer(THD *thd);
 LEX_USER *create_definer(THD *thd, LEX_STRING *user_name, LEX_STRING *host_name);
 LEX_USER *get_current_user(THD *thd, LEX_USER *user);
-bool check_string_length(LEX_STRING *str, const char *err_msg, uint max_length);
+bool check_string_length(CHARSET_INFO *cs, LEX_STRING *str,
+                         const char *err_msg, uint max_length);
 
 enum enum_mysql_completiontype {
   ROLLBACK_RELEASE=-2, ROLLBACK=1,  ROLLBACK_AND_CHAIN=7,

sql/slave.h

@@ -406,7 +406,7 @@ typedef struct st_master_info
   /* the variables below are needed because we can change masters on the fly */
   char master_log_name[FN_REFLEN];
   char host[HOSTNAME_LENGTH+1];
-  char user[USERNAME_LENGTH+1];
+  char user[USERNAME_BYTE_LENGTH+1];
   char password[MAX_PASSWORD_LENGTH+1];
   my_bool ssl; // enables use of SSL connection if true
   char ssl_ca[FN_REFLEN], ssl_capath[FN_REFLEN], ssl_cert[FN_REFLEN];

sql/sp.cc

@@ -404,16 +404,16 @@ db_load_routine(THD *thd, int type, sp_name *name, sp_head **sphp,
 {
   LEX *old_lex= thd->lex, newlex;
   String defstr;
-  char old_db_buf[NAME_LEN+1];
+  char old_db_buf[NAME_BYTE_LEN+1];
   LEX_STRING old_db= { old_db_buf, sizeof(old_db_buf) };
   bool dbchanged;
   ulong old_sql_mode= thd->variables.sql_mode;
   ha_rows old_select_limit= thd->variables.select_limit;
   sp_rcontext *old_spcont= thd->spcont;
   
-  char definer_user_name_holder[USERNAME_LENGTH + 1];
+  char definer_user_name_holder[USERNAME_BYTE_LENGTH + 1];
   LEX_STRING_WITH_INIT definer_user_name(definer_user_name_holder,
-                                         USERNAME_LENGTH);
+                                         USERNAME_BYTE_LENGTH);
 
   char definer_host_name_holder[HOSTNAME_LENGTH + 1];
   LEX_STRING_WITH_INIT definer_host_name(definer_host_name_holder,
@@ -511,7 +511,7 @@ db_create_routine(THD *thd, int type, sp_head *sp)
   int ret;
   TABLE *table;
   char definer[USER_HOST_BUFF_SIZE];
-  char old_db_buf[NAME_LEN+1];
+  char old_db_buf[NAME_BYTE_LEN+1];
   LEX_STRING old_db= { old_db_buf, sizeof(old_db_buf) };
   bool dbchanged;
   DBUG_ENTER("db_create_routine");

sql/sp_head.cc

@@ -924,7 +924,7 @@ bool
 sp_head::execute(THD *thd)
 {
   DBUG_ENTER("sp_head::execute");
-  char old_db_buf[NAME_LEN+1];
+  char old_db_buf[NAME_BYTE_LEN+1];
   LEX_STRING old_db= { old_db_buf, sizeof(old_db_buf) };
   bool dbchanged;
   sp_rcontext *ctx;
@@ -1957,8 +1957,8 @@ sp_head::set_info(longlong created, longlong modified,
 void
 sp_head::set_definer(const char *definer, uint definerlen)
 {
-  char user_name_holder[USERNAME_LENGTH + 1];
-  LEX_STRING_WITH_INIT user_name(user_name_holder, USERNAME_LENGTH);
+  char user_name_holder[USERNAME_BYTE_LENGTH + 1];
+  LEX_STRING_WITH_INIT user_name(user_name_holder, USERNAME_BYTE_LENGTH);
 
   char host_name_holder[HOSTNAME_LENGTH + 1];
   LEX_STRING_WITH_INIT host_name(host_name_holder, HOSTNAME_LENGTH);

sql/sql_acl.cc

@@ -54,7 +54,7 @@ static byte* acl_entry_get_key(acl_entry *entry,uint *length,
 }
 
 #define IP_ADDR_STRLEN (3+1+3+1+3+1+3)
-#define ACL_KEY_LENGTH (IP_ADDR_STRLEN+1+NAME_LEN+1+USERNAME_LENGTH+1)
+#define ACL_KEY_LENGTH (IP_ADDR_STRLEN+1+NAME_BYTE_LEN+1+USERNAME_BYTE_LENGTH+1)
 
 static DYNAMIC_ARRAY acl_hosts,acl_users,acl_dbs;
 static MEM_ROOT mem, memex;
@@ -197,7 +197,7 @@ static my_bool acl_load(THD *thd, TABLE_LIST *tables)
   READ_RECORD read_record_info;
   my_bool return_val= 1;
   bool check_no_resolve= specialflag & SPECIAL_NO_RESOLVE;
-  char tmp_name[NAME_LEN+1];
+  char tmp_name[NAME_BYTE_LEN+1];
   int password_length;
   DBUG_ENTER("acl_load");
 
@@ -2264,7 +2264,7 @@ static GRANT_NAME *name_hash_search(HASH *name_hash,
 				      const char *user, const char *tname,
 				      bool exact)
 {
-  char helping [NAME_LEN*2+USERNAME_LENGTH+3];
+  char helping [NAME_BYTE_LEN*2+USERNAME_BYTE_LENGTH+3];
   uint len;
   GRANT_NAME *grant_name,*found=0;
   HASH_SEARCH_STATE state;
@@ -3167,7 +3167,7 @@ bool mysql_grant(THD *thd, const char *db, List <LEX_USER> &list,
 {
   List_iterator <LEX_USER> str_list (list);
   LEX_USER *Str, *tmp_Str;
-  char tmp_db[NAME_LEN+1];
+  char tmp_db[NAME_BYTE_LEN+1];
   bool create_new_users=0;
   TABLE_LIST tables[2];
   DBUG_ENTER("mysql_grant");
@@ -3867,7 +3867,7 @@ err2:
 bool check_grant_db(THD *thd,const char *db)
 {
   Security_context *sctx= thd->security_ctx;
-  char helping [NAME_LEN+USERNAME_LENGTH+2];
+  char helping [NAME_BYTE_LEN+USERNAME_BYTE_LENGTH+2];
   uint len;
   bool error= 1;
 

sql/sql_class.h

@@ -200,7 +200,7 @@ class MYSQL_LOG: public TC_LOG
   IO_CACHE log_file;
   IO_CACHE index_file;
   char *name;
-  char time_buff[20],db[NAME_LEN+1];
+  char time_buff[20],db[NAME_BYTE_LEN+1];
   char log_file_name[FN_REFLEN],index_file_name[FN_REFLEN];
   /*
      The max size before rotation (usable only if log_type == LOG_BIN: binary

sql/sql_load.cc

@@ -147,10 +147,6 @@ bool mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
 	       MYF(0));
     DBUG_RETURN(TRUE);
   }
-  /*
-    This needs to be done before external_lock
-  */
-  ha_enable_transaction(thd, FALSE); 
   if (open_and_lock_tables(thd, table_list))
     DBUG_RETURN(TRUE);
   if (setup_tables_and_check_access(thd, &thd->lex->select_lex.context,
@@ -394,7 +390,6 @@ bool mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
     table->file->extra(HA_EXTRA_WRITE_CANNOT_REPLACE);
     table->next_number_field=0;
   }
-  ha_enable_transaction(thd, TRUE);
   if (file >= 0)
     my_close(file,MYF(0));
   free_blobs(table);				/* if pack_blob was used */

sql/sql_parse.cc

@@ -1001,8 +1001,8 @@ static int check_connection(THD *thd)
   char *passwd= strend(user)+1;
   uint user_len= passwd - user - 1;
   char *db= passwd;
-  char db_buff[NAME_LEN+1];                     // buffer to store db in utf8
-  char user_buff[USERNAME_LENGTH+1];		// buffer to store user in utf8
+  char db_buff[NAME_BYTE_LEN + 1];              // buffer to store db in utf8
+  char user_buff[USERNAME_BYTE_LENGTH + 1];	// buffer to store user in utf8
   uint dummy_errors;
 
   /*
@@ -1662,7 +1662,7 @@ bool dispatch_command(enum enum_server_command command, THD *thd,
       password.  New clients send the size (1 byte) + string (not null
       terminated, so also '\0' for empty string).
     */
-    char db_buff[NAME_LEN+1];                 // buffer to store db in utf8
+    char db_buff[NAME_BYTE_LEN+1];               // buffer to store db in utf8
     char *db= passwd;
     uint passwd_len= thd->client_capabilities & CLIENT_SECURE_CONNECTION ?
       *passwd++ : strlen(passwd);
@@ -7552,6 +7552,7 @@ LEX_USER *get_current_user(THD *thd, LEX_USER *user)
 
   SYNOPSIS
     check_string_length()
+      cs          string charset
       str         string to be checked
       err_msg     error message to be displayed if the string is too long
       max_length  max length
@@ -7561,13 +7562,13 @@ LEX_USER *get_current_user(THD *thd, LEX_USER *user)
     TRUE    the passed string is longer than max_length
 */
 
-bool check_string_length(LEX_STRING *str, const char *err_msg,
-                         uint max_length)
+bool check_string_length(CHARSET_INFO *cs, LEX_STRING *str,
+                         const char *err_msg, uint max_length)
 {
-  if (str->length <= max_length)
-    return FALSE;
+  if (cs->cset->charpos(cs, str->str, str->str + str->length,
+                        max_length) >= str->length)
+    return FALSE; 
 
   my_error(ER_WRONG_STRING_LENGTH, MYF(0), str->str, err_msg, max_length);
-
   return TRUE;
 }

sql/sql_repl.h

@@ -22,7 +22,7 @@ typedef struct st_slave_info
   uint32 server_id;
   uint32 rpl_recovery_rank, master_id;
   char host[HOSTNAME_LENGTH+1];
-  char user[USERNAME_LENGTH+1];
+  char user[USERNAME_BYTE_LENGTH+1];
   char password[MAX_PASSWORD_LENGTH+1];
   uint16 port;
   THD* thd;

sql/sql_yacc.yy

@@ -7507,7 +7507,8 @@ user:
 	  $$->host.str= (char *) "%";
 	  $$->host.length= 1;
 
-	  if (check_string_length(&$$->user, ER(ER_USERNAME), USERNAME_LENGTH))
+	  if (check_string_length(system_charset_info, &$$->user,
+                                  ER(ER_USERNAME), USERNAME_LENGTH))
 	    YYABORT;
 	}
 	| ident_or_text '@' ident_or_text
@@ -7517,9 +7518,10 @@ user:
 	      YYABORT;
 	    $$->user = $1; $$->host=$3;
 
-	    if (check_string_length(&$$->user, ER(ER_USERNAME), USERNAME_LENGTH) ||
-	        check_string_length(&$$->host, ER(ER_HOSTNAME),
-					       HOSTNAME_LENGTH))
+	    if (check_string_length(system_charset_info, &$$->user,
+                                    ER(ER_USERNAME), USERNAME_LENGTH) ||
+	        check_string_length(&my_charset_latin1, &$$->host,
+                                    ER(ER_HOSTNAME), HOSTNAME_LENGTH))
 	      YYABORT;
 	  }
 	| CURRENT_USER optional_braces

sql/table.cc

@@ -1592,7 +1592,7 @@ char *get_field(MEM_ROOT *mem, Field *field)
 
 bool check_db_name(char *name)
 {
-  char *start=name;
+  uint name_length= 0;  // name length in symbols
   /* Used to catch empty names and names with end space */
   bool last_char_is_space= TRUE;
 
@@ -1609,6 +1609,7 @@ bool check_db_name(char *name)
                           name+system_charset_info->mbmaxlen);
       if (len)
       {
+        name_length++;
         name += len;
         continue;
       }
@@ -1616,12 +1617,13 @@ bool check_db_name(char *name)
 #else
     last_char_is_space= *name==' ';
 #endif
+    name_length++;
     if (*name == '/' || *name == '\\' || *name == FN_LIBCHAR ||
 	*name == FN_EXTCHAR)
       return 1;
     name++;
   }
-  return last_char_is_space || (uint) (name - start) > NAME_LEN;
+  return (last_char_is_space || name_length > NAME_LEN);
 }