postmerge fixes

libmysqld/lib_sql.cc:
  struct st_security_context nad to class Security_context
sql/item_func.cc:
  fixed method call, name and contence to be compatible with new code
sql/item_func.h:
  fixed method to be compatible wit new code
sql/sql_parse.cc:
  fixed typo
  removed compiler warnings

libmysqld/lib_sql.cc

@@ -532,7 +532,7 @@ void *create_embedded_thd(int client_flag, char *db)
 int check_embedded_connection(MYSQL *mysql)
 {
   THD *thd= (THD*)mysql->thd;
-  st_security_context *sctx= thd->security_ctx;
+  Security_context *sctx= thd->security_ctx;
   sctx->host_or_ip= sctx->host= (char*)my_localhost;
   sctx->priv_user= sctx->user= my_strdup(mysql->user, MYF(0));
   return check_user(thd, COM_CONNECT, NULL, 0, thd->db, true);

sql/item_func.cc

@@ -4711,21 +4711,11 @@ Item_func_sp::execute(Item **itp)
   THD *thd= current_thd;
   int res= -1;
   Sub_statement_state statement_state;
-
-#ifndef NO_EMBEDDED_ACCESS_CHECKS
   Security_context *save_ctx;
-#endif
 
-  if (! m_sp && ! (m_sp= sp_find_function(thd, m_name, TRUE)))
-  {
-    my_error(ER_SP_DOES_NOT_EXIST, MYF(0), "FUNCTION", m_name->m_qname.str);
+  if (find_and_check_access(thd, EXECUTE_ACL, &save_ctx))
     goto error;
-  }
 
-#ifndef NO_EMBEDDED_ACCESS_CHECKS
-  if (check_access(EXECUTE_ACL, 0, &save_ctx))
-    goto error;
-#endif
   /*
     Disable the binlogging if this is not a SELECT statement. If this is a
     SELECT, leave binlogging on, so execute_function() code writes the
@@ -4851,71 +4841,67 @@ Item_func_sp::tmp_table_field(TABLE *t_arg)
   DBUG_RETURN(res);
 }
 
+
 /*
-  Check access rigths to function
+  Find the function and chack access rigths to the function
 
   SYNOPSIS
-    check_access()
+    find_and_check_access()
+    thd           thread handler
     want_access   requested access
-    report_error  whether to set error to thd->net.report_error
-    sp_ctx        sp security context for switching
+    backup        backup of security context or 0
 
   RETURN
-    0     Access granted
-    1     Requested access can't be granted or function doesn't exists
+    FALSE    Access granted
+    TRUE     Requested access can't be granted or function doesn't exists
 
   NOTES
     Checks if requested access to function can be granted to user.
     If function isn't found yet, it searches function first.
     If function can't be found or user don't have requested access
-    and report_error is true error is raised.
+    error is raised.
     If security context sp_ctx is provided and access can be granted then
     switch back to previous context isn't performed.
-    In case of access error or if context is not provided then check_access()
-    switches back to previous security context.
+    In case of access error or if context is not provided then
+    find_and_check_access() switches back to previous security context.
 */
+
 bool
-Item_func_sp::check_access(ulong want_access, bool report_error, st_sp_security_context *sp_ctx)
+Item_func_sp::find_and_check_access(THD *thd, ulong want_access,
+                                    Security_context **backup)
 {
   bool res;
-#ifndef NO_EMBEDDED_ACCESS_CHECKS
-  THD *thd= current_thd;
-  st_sp_security_context save_ctx, *curr_ctx= sp_ctx?sp_ctx:&save_ctx;
-  bool ctx_switched= 0;
-  res= 1;
+  Security_context *local_save,
+                   **save= (backup ? backup : &local_save);
+  res= TRUE;
   if (! m_sp && ! (m_sp= sp_find_function(thd, m_name, TRUE)))
   {
     my_error(ER_SP_DOES_NOT_EXIST, MYF(0), "FUNCTION", m_name->m_qname.str);
-    if (report_error)
-      thd->net.report_error= 1;
     goto error;
   }
 
+#ifndef NO_EMBEDDED_ACCESS_CHECKS
   if (check_routine_access(thd, want_access,
-			   m_sp->m_db.str, m_sp->m_name.str, 0, 0))
+			   m_sp->m_db.str, m_sp->m_name.str, 0, FALSE))
   {
-    if (report_error)
-      thd->net.report_error= 1;
     goto error;
   }
 
-  sp_change_security_context(thd, m_sp, curr_ctx);
-  ctx_switched= curr_ctx->changed;
-  if (curr_ctx->changed &&
+  sp_change_security_context(thd, m_sp, save);
+  if (*save &&
       check_routine_access(thd, want_access,
-			   m_sp->m_db.str, m_sp->m_name.str, 0, 0))
+			   m_sp->m_db.str, m_sp->m_name.str, 0, FALSE))
   {
-    if (report_error)
-      thd->net.report_error= 1;
     goto error_check_ctx;
   }
-  res= 0;
+  res= FALSE;
 error_check_ctx:
-  if (ctx_switched && (res || !sp_ctx))
-    sp_restore_security_context(thd, m_sp, curr_ctx);
+  if (*save && (res || !backup))
+    sp_restore_security_context(thd, local_save);
 error:
 #else
   res= 0;
+error:
 #endif
   return res;
 };
@@ -4926,7 +4912,7 @@ Item_func_sp::fix_fields(THD *thd, Item **ref)
   bool res;
   DBUG_ASSERT(fixed == 0);
   res= Item_func::fix_fields(thd, ref);
-  if (!res && check_access(EXECUTE_ACL, 1, NULL))
+  if (!res && find_and_check_access(thd, EXECUTE_ACL, NULL))
     res= 1;
   return res;
 }

sql/item_func.h

@@ -1435,7 +1435,8 @@ class Item_func_sp :public Item_func
     { context= (Name_resolution_context *)cntx; return FALSE; }
 
   void fix_length_and_dec();
-  bool check_access(ulong want_access, bool report_error, st_sp_security_context *sp_ctx);
+  bool find_and_check_access(THD * thd, ulong want_access,
+                             Security_context **backup);
   virtual enum Functype functype() const { return FUNC_SP; }
 
   bool fix_fields(THD *thd, Item **ref);

sql/sql_parse.cc

@@ -273,7 +273,7 @@ int check_user(THD *thd, enum enum_server_command command,
   DBUG_ENTER("check_user");
   
 #ifdef NO_EMBEDDED_ACCESS_CHECKS
-  thd->ain_security_ctx.master_access= GLOBAL_ACLS;       // Full rights
+  thd->main_security_ctx.master_access= GLOBAL_ACLS;       // Full rights
   /* Change database if necessary */
   if (db && db[0])
   {
@@ -4490,10 +4490,10 @@ mysql_execute_command(THD *thd)
           mysql_bin_log.is_open())
       {
         String buff;
-        LEX_STRING command[3]=
-          {{STRING_WITH_LEN("CREATE ")},
-           {STRING_WITH_LEN("ALTER ")},
-           {STRING_WITH_LEN("CREATE OR REPLACE ")}};
+        const LEX_STRING command[3]=
+          {{(char *)STRING_WITH_LEN("CREATE ")},
+           {(char *)STRING_WITH_LEN("ALTER ")},
+           {(char *)STRING_WITH_LEN("CREATE OR REPLACE ")}};
         thd->clear_error();
 
         buff.append(command[thd->lex->create_view_mode].str,