bk commit into 5.0 tree (gluh:1.2475) BUG#2628

[gluh]

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ChangeSet@stripped, 2007-03-14 18:23:29+04:00, gluh@stripped +3 -0
  Bug#2628 5electing information_schema crahes server
  The crash happens when 'skip-grant-tables' is enabled.
  We skip the filling of I_S privilege tables 
  if acl_cache is not initialized.

  mysql-test/r/skip_grants.result@stripped, 2007-03-14 18:23:27+04:00, gluh@stripped +12 -0
    test case

  mysql-test/t/skip_grants.test@stripped, 2007-03-14 18:23:27+04:00, gluh@stripped +8 -0
    test case

  sql/sql_acl.cc@stripped, 2007-03-14 18:23:27+04:00, gluh@stripped +4 -0
    skip filling of I_S privilege tables
    if acl_cache is not initialized.

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	gluh
# Host:	eagle.(none)
# Root:	/home/gluh/MySQL/Bugs/5.0.26285

--- 1.217/sql/sql_acl.cc	2007-02-22 18:59:55 +04:00
+++ 1.218/sql/sql_acl.cc	2007-03-14 18:23:27 +04:00
@@ -5882,6 +5882,8 @@ int fill_schema_user_privileges(THD *thd
   char *curr_host= thd->security_ctx->priv_host_name();
   DBUG_ENTER("fill_schema_user_privileges");
 
+  if (!initialized)
+    DBUG_RETURN(0);
   pthread_mutex_lock(&acl_cache->lock);
 
   for (counter=0 ; counter < acl_users.elements ; counter++)
@@ -5941,6 +5943,8 @@ int fill_schema_schema_privileges(THD *t
   char *curr_host= thd->security_ctx->priv_host_name();
   DBUG_ENTER("fill_schema_schema_privileges");
 
+  if (!initialized)
+    DBUG_RETURN(0);
   pthread_mutex_lock(&acl_cache->lock);
 
   for (counter=0 ; counter < acl_dbs.elements ; counter++)

--- 1.9/mysql-test/r/skip_grants.result	2006-03-10 15:40:12 +04:00
+++ 1.10/mysql-test/r/skip_grants.result	2007-03-14 18:23:27 +04:00
@@ -58,3 +58,15 @@ DROP PROCEDURE p3;
 DROP FUNCTION f1;
 DROP FUNCTION f2;
 DROP FUNCTION f3;
+select count(*) from information_schema.COLUMN_PRIVILEGES;
+count(*)
+0
+select count(*) from information_schema.SCHEMA_PRIVILEGES;
+count(*)
+0
+select count(*) from information_schema.TABLE_PRIVILEGES;
+count(*)
+0
+select count(*) from information_schema.USER_PRIVILEGES;
+count(*)
+0

--- 1.11/mysql-test/t/skip_grants.test	2006-03-10 15:40:12 +04:00
+++ 1.12/mysql-test/t/skip_grants.test	2007-03-14 18:23:27 +04:00
@@ -108,3 +108,11 @@ DROP PROCEDURE p3;
 DROP FUNCTION f1;
 DROP FUNCTION f2;
 DROP FUNCTION f3;
+
+#
+# Bug#26285 Selecting information_schema crahes server
+#
+select count(*) from information_schema.COLUMN_PRIVILEGES;
+select count(*) from information_schema.SCHEMA_PRIVILEGES;
+select count(*) from information_schema.TABLE_PRIVILEGES;
+select count(*) from information_schema.USER_PRIVILEGES;