bk commit into 5.0 tree (msvensson:1.2009) BUG#15598

[msvensson]

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ChangeSet
  1.2009 06/01/04 17:02:11 msvensson@neptunus.(none) +3 -0
  Bug #15598 Server crashes in specific case during setting new password
  - Comparing host string against NULL caused crash. 
  - If host.hostname is NULL treat it as ""

  sql/sql_acl.cc
    1.185 06/01/04 17:02:02 msvensson@neptunus.(none) +3 -2
    If host.host_name is NULL in acl_user it should be evaluated as ""

  mysql-test/t/grant.test
    1.37 06/01/04 17:02:02 msvensson@neptunus.(none) +11 -0
    Add test for user with host ""

  mysql-test/r/grant.result
    1.47 06/01/04 17:02:02 msvensson@neptunus.(none) +8 -0
    Update test results

# 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:	msvensson
# Host:	neptunus.(none)
# Root:	/home/msvensson/mysql/bug15598/my50-bug15598

--- 1.184/sql/sql_acl.cc	2005-12-06 17:04:21 +01:00
+++ 1.185/sql/sql_acl.cc	2006-01-04 17:02:02 +01:00
@@ -1528,7 +1528,8 @@
 	acl_user->user && !strcmp(user,acl_user->user))
     {
       if (exact ? !my_strcasecmp(&my_charset_latin1, host,
-                                 acl_user->host.hostname) :
+                                 acl_user->host.hostname ?
+				 acl_user->host.hostname : "") :
           compare_hostname(&acl_user->host,host,host))
       {
 	DBUG_RETURN(acl_user);
@@ -4913,7 +4914,7 @@
       acl_user= dynamic_element(&acl_users, idx, ACL_USER*);
       user= acl_user->user;
       if (!(host= acl_user->host.hostname))
-        host= "%";
+        host= "";
       break;
 
     case 1:

--- 1.46/mysql-test/r/grant.result	2005-11-28 14:06:26 +01:00
+++ 1.47/mysql-test/r/grant.result	2006-01-04 17:02:02 +01:00
@@ -615,3 +615,11 @@
 Grants for root@localhost
 GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION
 set names latin1;
+create user mysqltest_7@;
+set password for mysqltest_7@ = password('systpass');
+show grants for mysqltest_7@;
+Grants for mysqltest_7@
+GRANT USAGE ON *.* TO 'mysqltest_7'@'' IDENTIFIED BY PASSWORD
'*2FB071A056F9BB745219D9C876814231DAF46517'
+drop user mysqltest_7@;
+show grants for mysqltest_7@;
+ERROR 42000: There is no such grant defined for user 'mysqltest_7' on host ''

--- 1.36/mysql-test/t/grant.test	2005-11-28 12:28:37 +01:00
+++ 1.37/mysql-test/t/grant.test	2006-01-04 17:02:02 +01:00
@@ -500,3 +500,14 @@
 set names latin1;
 
 # End of 4.1 tests
+
+#
+# Bug #15598 Server crashes in specific case during setting new password
+#
+# Create a user with host "", will be stored in host table as NULL
+create user mysqltest_7@;
+set password for mysqltest_7@ = password('systpass');
+show grants for mysqltest_7@;
+drop user mysqltest_7@;
+--error 1141
+show grants for mysqltest_7@;