Check for IP address in network/netmask

[Dr. Peter Poeml]

Hi,

what is the standard way to store network/netmask combos, and check if a
client IP address is contained in them?

I once saw a function for that but I can't find it now. Maybe it was
apr_ipsubnet_test(), as used in modules/aaa/mod_authz_host.c. Probably
this does what I need. I find further code in apr/test/testipsub.c.

However, I would appreciate pointers to possible alternatives. I would
also appreciate pointers to examples where this is used in a module
other than mod_authz_host.

Thanks!
Peter
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