Check CCache file length in LoadCCache()#525
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Check the file length of the credentials cache file in LoadCCache() to avoid a panic when parsing a short ccache file, e.g., an empty file. Signed-off-by: hwipl <33433250+hwipl@users.noreply.github.com>
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The LoadCCache() function does not check the file length of the ccache file and Unmarshal() panics when parsing a short ccache file like, e.g., an empty file. So, check a minimum ccache file length before unmarshalling it.
Closes #524