fixed Bug #2985

 "Table truncated when creating another table name with Spaces"
added to check_db_name, check_table_name and check_column_name
test for end space


mysql-test/r/create.result:
  added test for Bug #2985 
   "Table truncated when creating another table name with Spaces"
mysql-test/t/create.test:
  added test for Bug #2985 
   "Table truncated when creating another table name with Spaces"
sql/sql_db.cc:
  cancel strip end spaces for database name
sql/sql_parse.cc:
  cancel strip end spaces for database name
sql/table.cc:
  added to check_db_name, check_table_name and check_column_name 
  test for end space

mysql-test/r/create.result

@@ -216,3 +216,9 @@ a	b
 0	2
 3	4
 drop table t1;
+create table `t1 `(a int);
+Incorrect table name 't1 '
+create database `db1 `;
+Incorrect database name 'db1 '
+create table t1(`a ` int);
+Incorrect column name 'a '

mysql-test/t/create.test

@@ -179,3 +179,15 @@ create table if not exists t1 select 3 as 'a',4 as 'b';
 create table if not exists t1 select 3 as 'a',3 as 'b';
 select * from t1;
 drop table t1;
+
+#
+# Test for Bug #2985 
+#   "Table truncated when creating another table name with Spaces"
+#
+
+--error 1103
+create table `t1 `(a int);
+--error 1102
+create database `db1 `;
+--error 1166;
+create table t1(`a ` int);

sql/sql_db.cc

@@ -376,7 +376,7 @@ bool mysql_change_db(THD *thd,const char *name)
   ulong db_access;
   DBUG_ENTER("mysql_change_db");
 
-  if (!dbname || !(db_length=strip_sp(dbname)))
+  if (!dbname || !(db_length= strlength(dbname)))
   {
     x_free(dbname);				/* purecov: inspected */
     send_error(&thd->net,ER_NO_DB_ERROR);	/* purecov: inspected */

sql/sql_parse.cc

@@ -1123,8 +1123,7 @@ bool dispatch_command(enum enum_server_command command, THD *thd,
 
       statistic_increment(com_stat[SQLCOM_CREATE_DB],&LOCK_status);
       // null test to handle EOM
-      if (!db || !strip_sp(db) || !(alias= thd->strdup(db)) ||
-	  check_db_name(db))
+      if (!db || !(alias= thd->strdup(db)) || check_db_name(db))
       {
 	net_printf(&thd->net,ER_WRONG_DB_NAME, db ? db : "NULL");
 	break;
@@ -1140,8 +1139,7 @@ bool dispatch_command(enum enum_server_command command, THD *thd,
       statistic_increment(com_stat[SQLCOM_DROP_DB],&LOCK_status);
       char *db=thd->strdup(packet), *alias;
       // null test to handle EOM
-      if (!db || !strip_sp(db) || !(alias= thd->strdup(db)) ||
-	  check_db_name(db))
+      if (!db || !(alias= thd->strdup(db)) || check_db_name(db))
       {
 	net_printf(&thd->net,ER_WRONG_DB_NAME, db ? db : "NULL");
 	break;
@@ -2320,8 +2318,7 @@ mysql_execute_command(void)
   case SQLCOM_CREATE_DB:
   {
     char *alias;
-    if (!strip_sp(lex->name) || !(alias=thd->strdup(lex->name)) ||
-	check_db_name(lex->name))
+    if (!(alias=thd->strdup(lex->name)) || check_db_name(lex->name))
     {
       net_printf(&thd->net,ER_WRONG_DB_NAME, lex->name);
       break;
@@ -2350,8 +2347,7 @@ mysql_execute_command(void)
   case SQLCOM_DROP_DB:
   {
     char *alias;
-    if (!strip_sp(lex->name) || !(alias=thd->strdup(lex->name)) ||
-	check_db_name(lex->name))
+    if (!(alias=thd->strdup(lex->name)) || check_db_name(lex->name))
     {
       net_printf(&thd->net,ER_WRONG_DB_NAME, lex->name);
       break;

sql/table.cc

@@ -1139,7 +1139,8 @@ char *get_field(MEM_ROOT *mem, TABLE *table, uint fieldnr)
 
 bool check_db_name(char *name)
 {
-   char *start=name;
+  char *start=name;
+  bool space= false;
 
   if (lower_case_table_names)
     casedn_str(name);
@@ -1147,6 +1148,7 @@ bool check_db_name(char *name)
   while (*name)
   {
 #if defined(USE_MB) && defined(USE_MB_IDENT)
+    space= my_isspace(default_charset_info, *name);
     if (use_mb(default_charset_info))
     {
       int len=my_ismbchar(default_charset_info, name, name+MBMAXLEN);
@@ -1156,19 +1158,24 @@ bool check_db_name(char *name)
         continue;
       }
     }
+#else
+    space= *name==' ';
 #endif
     if (*name == '/' || *name == '\\' || *name == FN_LIBCHAR ||
 	*name == FN_EXTCHAR)
       return 1;
     name++;
   }
-  return (uint) (name - start) > NAME_LEN;
+  if (space)
+    return 1;
+  return name[-1]==' ' || (uint) (name - start) > NAME_LEN;
 }
 
 
 /*
   Allow anything as a table name, as long as it doesn't contain an
   a '/', or a '.' character
+  or ' ' at the end
   returns 1 on error
 */
 
@@ -1178,10 +1185,17 @@ bool check_table_name(const char *name, uint length)
   const char *end= name+length;
   if (!length || length > NAME_LEN)
     return 1;
+#if defined(USE_MB) && defined(USE_MB_IDENT)
+  bool space= false;
+#else
+  if (name[length-1]==' ')
+    return 1;
+#endif
 
   while (name != end)
   {
 #if defined(USE_MB) && defined(USE_MB_IDENT)
+    space= my_isspace(default_charset_info, *name);
     if (use_mb(default_charset_info))
     {
       int len=my_ismbchar(default_charset_info, name, end);
@@ -1196,16 +1210,22 @@ bool check_table_name(const char *name, uint length)
       return 1;
     name++;
   }
+#if defined(USE_MB) && defined(USE_MB_IDENT)
+  if (space)
+    return 1;
+#endif
   return 0;
 }
 
 bool check_column_name(const char *name)
 {
   const char *start= name;
+  bool space= false;
 
   while (*name)
   {
 #if defined(USE_MB) && defined(USE_MB_IDENT)
+    space= my_isspace(default_charset_info, *name);
     if (use_mb(default_charset_info))
     {
       int len=my_ismbchar(default_charset_info, name, name+MBMAXLEN);
@@ -1215,11 +1235,15 @@ bool check_column_name(const char *name)
         continue;
       }
     }
+#else
+    space= *name==' ';
 #endif
     if (*name == NAMES_SEP_CHAR)
       return 1;
     name++;
   }
+  if (space)
+    return 1;
   /* Error if empty or too long column name */
   return (name == start || (uint) (name - start) > NAME_LEN);
 }