Hans Leidekker : msi: Reject greater than and less than string comparisons in WHERE clauses.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 6df6332198597aa0e03f9e15c9f4e8c883356f3b
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=6df6332198597aa0e03f9e15c9...

Author: Hans Leidekker <hans(a)codeweavers.com>
Date:   Tue Dec 15 09:50:40 2009 +0100

msi: Reject greater than and less than string comparisons in WHERE clauses.

---

 dlls/msi/tests/db.c |   24 ++++++++++++++++++++++++
 dlls/msi/where.c    |    6 +-----
 2 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/dlls/msi/tests/db.c b/dlls/msi/tests/db.c
index e44970d..c909f90 100644
--- a/dlls/msi/tests/db.c
+++ b/dlls/msi/tests/db.c
@@ -1761,6 +1761,30 @@ static void test_where(void)
     ok( r == ERROR_SUCCESS, "query failed: %d\n", r );
     MsiCloseHandle( rec );
 
+    rec = 0;
+    query = "SELECT * FROM `Media` WHERE `DiskPrompt` < 'Cabinet'";
+    r = do_query(hdb, query, &rec);
+    ok( r == ERROR_BAD_QUERY_SYNTAX, "query failed: %d\n", r );
+    MsiCloseHandle( rec );
+
+    rec = 0;
+    query = "SELECT * FROM `Media` WHERE `DiskPrompt` > 'Cabinet'";
+    r = do_query(hdb, query, &rec);
+    ok( r == ERROR_BAD_QUERY_SYNTAX, "query failed: %d\n", r );
+    MsiCloseHandle( rec );
+
+    rec = 0;
+    query = "SELECT * FROM `Media` WHERE `DiskPrompt` <> 'Cabinet'";
+    r = do_query(hdb, query, &rec);
+    todo_wine ok( r == ERROR_SUCCESS, "query failed: %d\n", r );
+    MsiCloseHandle( rec );
+
+    rec = 0;
+    query = "SELECT * FROM `Media` WHERE `DiskPrompt` = 'Cabinet'";
+    r = do_query(hdb, query, &rec);
+    ok( r == ERROR_NO_MORE_ITEMS, "query failed: %d\n", r );
+    MsiCloseHandle( rec );
+
     rec = MsiCreateRecord(1);
     MsiRecordSetString(rec, 1, "");
 
diff --git a/dlls/msi/where.c b/dlls/msi/where.c
index 32f71b9..545d6a8 100644
--- a/dlls/msi/where.c
+++ b/dlls/msi/where.c
@@ -309,9 +309,7 @@ static UINT STRCMP_Evaluate( MSIWHEREVIEW *wv, UINT row, const struct expr *cond
         sr = lstrcmpW( l_str, r_str );
 
     *val = ( cond->u.expr.op == OP_EQ && ( sr == 0 ) ) ||
-           ( cond->u.expr.op == OP_NE && ( sr != 0 ) ) ||
-           ( cond->u.expr.op == OP_LT && ( sr < 0 ) ) ||
-           ( cond->u.expr.op == OP_GT && ( sr > 0 ) );
+           ( cond->u.expr.op == OP_NE && ( sr != 0 ) );
 
     return ERROR_SUCCESS;
 }
@@ -644,8 +642,6 @@ static UINT WHERE_VerifyCondition( MSIDATABASE *db, MSIVIEW *table, struct expr
             switch( cond->u.expr.op )
             {
             case OP_EQ:
-            case OP_GT:
-            case OP_LT:
             case OP_NE:
                 break;
             default: