urlmon: Check the return value of ReadFile and return INET_E_DOWNLOAD_FAILURE is it fails.

Initialise *pcbRead to zero, if the parameter is not NULL.

urlmon: Check the return value of ReadFile and return INET_E_DOWNLOAD_FAILURE is it fails.
229e024a · Rob Shearman · Alexandre Julliard · 2e99817a · 229e024a
Commit 229e024a authored Feb 15, 2008 by Rob Shearman Committed by Alexandre Julliard Feb 16, 2008
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file.c dlls/urlmon/file.c +5 -1

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--- a/dlls/urlmon/file.c
+++ b/dlls/urlmon/file.c
@@ -229,10 +229,14 @@ static HRESULT WINAPI FileProtocol_Read(IInternetProtocol *iface, void *pv,

    TRACE("(%p)->(%p %u %p)\n", This, pv, cb, pcbRead);

+    if (pcbRead)
+        *pcbRead = 0;
+
    if(!This->file)
        return INET_E_DATA_NOT_AVAILABLE;

-    ReadFile(This->file, pv, cb, &read, NULL);
+    if (!ReadFile(This->file, pv, cb, &read, NULL))
+        return INET_E_DOWNLOAD_FAILURE;

    if(pcbRead)
        *pcbRead = read;