bk commit into 4.1 tree (reggie:1.2299) BUG#10181

[reggie]

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ChangeSet
  1.2299 05/05/26 14:02:18 reggie@mdk10.(none) +1 -0
  Bug #10181 mysqld.exe crash with an access violation after INSERT INTO mysql.host 
  
  sql_acl.cc:
    Make sure host.db is a valid string pointer before we do our lower_case_table_names
comparison

  sql/sql_acl.cc
    1.163 05/05/26 14:01:18 reggie@mdk10.(none) +1 -1
    Make sure host.db is a valid string pointer before we do our lower_case_table_names
comparison

# 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:	reggie
# Host:	mdk10.(none)
# Root:	/home/reggie/bk/41test3

--- 1.162/sql/sql_acl.cc	2005-03-26 13:05:07 -06:00
+++ 1.163/sql/sql_acl.cc	2005-05-26 14:01:18 -05:00
@@ -198,7 +198,7 @@
     ACL_HOST host;
     update_hostname(&host.host,get_field(&mem, table->field[0]));
     host.db=	 get_field(&mem, table->field[1]);
-    if (lower_case_table_names)
+    if (lower_case_table_names && host.db)
     {
       /*
        We make a temporary copy of the database, force it to lower case,