dwrite: Protect from space-only strings when trimming away spaces.

1f54400b · Nikolay Sivov · Alexandre Julliard · 6b98b9ac · 1f54400b
Commit 1f54400b authored Aug 18, 2015 by Nikolay Sivov Committed by Alexandre Julliard Aug 19, 2015
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Showing with 4 additions and 1 deletion

font.c dlls/dwrite/font.c +4 -1

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--- a/dlls/dwrite/font.c
+++ b/dlls/dwrite/font.c
@@ -1967,7 +1967,10 @@ static int trim_spaces(WCHAR *in, WCHAR *ret)
    while (isspaceW(*in))
        in++;

-    len = strlenW(in);
+    ret[0] = 0;
+    if (!(len = strlenW(in)))
+        return 0;
+
    while (isspaceW(in[len-1]))
        len--;