after merge fix

include/mysql_com.h:
  USERNAME_LENGTH is changed to USERNAME_BYTE_LENGTH
mysql-test/r/ctype_utf8.result:
  result fix
mysql-test/t/ctype_utf8.test:
  test fix
sql/sp.cc:
  NAME_LEN constant is changed to NAME_BYTE_LEN for database name buffer
  USERNAME_LENGTH constant is changed to USERNAME_BYTE_LENGTH for user name buffer
sql/sp_head.cc:
  NAME_LEN constant is changed to NAME_BYTE_LEN for database name buffer
  USERNAME_LENGTH constant is changed to USERNAME_BYTE_LENGTH for user name buffer
sql/sql_acl.cc:
  NAME_LEN constant is changed to NAME_BYTE_LEN for database name buffer
  USERNAME_LENGTH constant is changed to USERNAME_BYTE_LENGTH for user name buffer
sql/sql_class.h:
  NAME_LEN constant is changed to NAME_BYTE_LEN for database name buffer
sql/sql_parse.cc:
  NAME_LEN constant is changed to NAME_BYTE_LEN for database name buffer
  Function check_string_length() is fixed, now it check string lenght in symbols
sql/sql_repl.h:
  NAME_LEN constant is changed to NAME_BYTE_LEN for database name buffer
  USERNAME_LENGTH constant is changed to USERNAME_BYTE_LENGTH for user name buffer

include/mysql_com.h

@@ -36,7 +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/r/ctype_utf8.result

@@ -1341,17 +1341,18 @@ a
 e
 drop table t1;
 set names utf8;
-grant select on test.* to <8e>зе<80>_<8e>зе<80>@localhost;
+grant select on test.* to юзер_юзер@localhost;
 user()
-<8e>зе<80>_<8e>зе<80>@localhost
-revoke all on test.* from <8e>зе<80>_<8e>зе<80>@localhost;
-drop user <8e>зе<80>_<8e>зе<80>@localhost;
-create database им<8f>_баз<8b>_в_коди<80>овке_<83><82><84>8_длиной_бол<8c><88>е_<87>ем_45;
-use им<8f>_баз<8b>_в_коди<80>овке_<83><82><84>8_длиной_бол<8c><88>е_<87>ем_45;
+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()
-им<8f>_баз<8b>_в_коди<80>овке_<83><82><84>8_длиной_бол<8c><88>е_<87>ем_45
-drop database им<8f>_баз<8b>_в_коди<80>овке_<83><82><84>8_длиной_бол<8c><88>е_<87>ем_45;
+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/t/ctype_utf8.test

@@ -1084,6 +1084,7 @@ create database имя_базы_в_кодировке_утф8_длиной_бо
 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
 

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_parse.cc

@@ -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);
@@ -7564,7 +7564,10 @@ LEX_USER *get_current_user(THD *thd, LEX_USER *user)
 bool check_string_length(LEX_STRING *str, const char *err_msg,
                          uint max_length)
 {
-  if (str->length <= max_length)
+
+  if (system_charset_info->cset->charpos(system_charset_info, 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);

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;