lib.pcap.lua: replace ffi.cast() from a local string with ffi.copy() #244
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…ough to use a cast pointer
javierguerragiraldez
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lukego
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Aug 25, 2014
lib.pcap.lua: replace ffi.cast() from a local string with ffi.copy()
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readc() reads a local string and casts to a pointer of a given type. The string goes out of scope and can be collected, making the pointer invalid. Replacing the cast with a copy makes it safer and allows the code generated by packet_filter to be JITted.