Evan Stade : gdiplus: Check custom dash array for bad properties.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: b6b7e915c30a83cd5a6dce6606d5f149e4ae1de1
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=b6b7e915c30a83cd5a6dce6606...

Author: Evan Stade 
Date:   Fri Jul 27 16:07:47 2007 -0700

gdiplus: Check custom dash array for bad properties.

---

dlls/gdiplus/pen.c       |   12 ++++++++++++
 dlls/gdiplus/tests/pen.c |    6 ++----
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/dlls/gdiplus/pen.c b/dlls/gdiplus/pen.c
index 7d7237b..b85f158 100644
--- a/dlls/gdiplus/pen.c
+++ b/dlls/gdiplus/pen.c
@@ -223,9 +223,21 @@ GpStatus WINGDIPAPI GdipSetPenCustomStartCap(GpPen *pen, GpCustomLineCap* custom
 GpStatus WINGDIPAPI GdipSetPenDashArray(GpPen *pen, GDIPCONST REAL *dash,
     INT count)
 {
+    INT i;
+    REAL sum = 0;
+
     if(!pen || !dash)
         return InvalidParameter;

+    for(i = 0; i < count; i++){
+        sum += dash[i];
+        if(dash[i] < 0.0)
+            return InvalidParameter;
+    }
+
+    if(sum == 0.0 && count)
+        return InvalidParameter;
+
     GdipFree(pen->dashes);
     pen->dashes = NULL;

diff --git a/dlls/gdiplus/tests/pen.c b/dlls/gdiplus/tests/pen.c
index 3fede54..fc792a6 100644
--- a/dlls/gdiplus/tests/pen.c
+++ b/dlls/gdiplus/tests/pen.c
@@ -176,12 +176,10 @@ static void test_dasharray(void)

/* Some invalid array values. */
     status = GdipSetPenDashArray(pen, &dashes[7], 5);
-    todo_wine
-        expect(InvalidParameter, status);
+    expect(InvalidParameter, status);
     dashes[9] = -1.0;
     status = GdipSetPenDashArray(pen, &dashes[7], 5);
-    todo_wine
-        expect(InvalidParameter, status);
+    expect(InvalidParameter, status);

/* Try to set with count = 0. */
     GdipSetPenDashStyle(pen, DashStyleDot);