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Feature #2637

closed

af-packet: improve error output for BPF loading failure

Added by Victor Julien over 5 years ago. Updated over 5 years ago.

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Closed
Priority:
Normal
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Description

"pcap_compile_nopcap() is similar to pcap_compile() except that instead of passing a pcap structure, one passes the snaplen and linktype explicitly. It is intended to be used for compiling filters for direct BPF usage, without necessarily having called pcap_open(). A return of -1 indicates an error; the error text is unavailable. (pcap_compile_nopcap() is a wrapper around pcap_open_dead(), pcap_compile(), and pcap_close(); the latter three routines can be used directly in order to get the error text for a compilation error.) "

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