resolv: Add internal __ns_name_length_uncompressed function
This function is useful for checking that the question name is
uncompressed (as it should be).
Reviewed-by: 
Siddhesh Poyarekar <siddhesh@sourceware.org>
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This function is useful for checking that the question name is
uncompressed (as it should be).
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>