Fix invalid DNS IPv4 address parsing on big endian arch.
Fix invalid DNS IPv4 address parsing on big endian arch.

rklabs/libtins,bowlofstew/libtins,rklabs/libtins,hanw/libtins,wavelets/libtins,wavelets/libtins,salessandri/libtins,mfontanini/libtins,viveks9/decrypt80211,hanw/libtins,UlfWetzker/libtins,mfontanini/libtins,salessandri/libtins,bowlofstew/libtins,capturePointer/libtins,zmb3/libtins,UlfWetzker/libtins,zmb3/libtins,viveks9/decrypt80211,capturePointer/libtins