Function dump_strings 

pub fn dump_strings<T: Activated>(
    cap: &mut Capture<T>,
    len: &usize,
    resolver: &mut Option<Box<Resolver>>,
    block_print: &bool,
    regex: &Option<Regex>,
)

Dump any valid ASCII strings over len size to stdout.

If resolver is passed in, this function will use it to perform DNS lookups on addresses.

If block_print is set, the function will only print the packet headers for the first ASCII line found.

If regex is provided this is run against the entire packet before the string scanning is run. Packets not matching the regex are skipped.