Re: Question about pcap_create and HAVE_REMOTE

[Guy Harris <guy () alum mit edu>]

On Mar 29, 2017, at 2:04 PM, Joerg Mayer <jmayer () loplof de> wrote:

> does HAVE_REMOTE imply that libpcap supports pcap_create nowadays? If so, it would
> allow some nice cleanups ;)

On Windows, where we do checks at run time (as we load WinPcap dynamically) as well as compile time, older versions of 
WinPcap had pcap_open(), with remote support, but not pcap_create(); current versions have both.  Our code is built 
with support for both; if the version of WinPcap we've loaded doesn't have pcap_create(), we fall back on 
pcap_open_live().

On macOS, if we were to do run-time checking (so that we can support new features if, as, and when Apple picks them 
up), the oldest OS we support with our binary packages is Snow Leopard, which has pcap_create().

On UN*X without run-time checking, the only releases from tcpdump.org that offer remote capture support will also have 
pcap_create(); you'd only have to worry about people who add remote capture to a pre-1.0 libpcap and build it and 
install it themselves, and I'm not sure worrying about them is worth it.
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