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wbemprox: Avoid a crash on file or directory queries with an empty WHERE clause.

oldstable
Hans Leidekker 2013-08-28 09:49:05 +02:00 committed by Alexandre Julliard
parent 9bf8a5ec6f
commit 7da04aab6d
1 changed files with 5 additions and 2 deletions
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7
dlls/wbemprox/builtin.c
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@ -1085,9 +1085,12 @@ static BOOL seen_dir( struct dirstack *dirstack, const WCHAR *path )
/* optimize queries of the form WHERE Name='...' [OR Name='...']* */
static UINT seed_dirs( struct dirstack *dirstack, const struct expr *cond, WCHAR root, UINT *count )
{
const struct expr *left = cond->u.expr.left, *right = cond->u.expr.right;
const struct expr *left, *right;
if (cond->type != EXPR_COMPLEX) return *count = 0;
if (!cond || cond->type != EXPR_COMPLEX) return *count = 0;
left = cond->u.expr.left;
right = cond->u.expr.right;
if (cond->u.expr.op == OP_EQ)
{
UINT len;