Re: significance of init_addrtoname()

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

On Sun, Nov 23, 2003 at 01:55:16PM -0600, alex medvedev wrote:
> why do we need to call init_addrtoname() function in tcpdump.c?

Because, otherwise, the hash tables used to look up the values in the
tables aren't constructed, and the "f_localnet" and "f_netmask" global
variables used for the "-f" flag aren't initialized.

> what happens if we don't call it? :)

The same thing that happens if you run tcpdump with "-n", except that
the "-f" flag won't work correctly if you don't call
"init_addrtoname()".

What problem is caused by calling it?
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