Date: Sat, 12 Aug 1995 09:47:56 +0200 (MET DST) From: J Wunsch <j@uriah.heep.sax.de> To: jkh@freefall.FreeBSD.org (Jordan K. Hubbard) Cc: freebsd-bugs@FreeBSD.org, joerg_wunsch@uriah.heep.sax.de Subject: Re: 950726-SNAP lp0/nfs install bug ? Message-ID: <199508120747.JAA18320@uriah.heep.sax.de> In-Reply-To: <8860.808173419@freefall.FreeBSD.org> from "Jordan K. Hubbard" at Aug 11, 95 01:36:59 pm
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As Jordan K. Hubbard wrote: > > Hmmm. Anyone willing to give me a little formula to calculate > netmask based on IP address? Then I could also fill it in.. :-) unsigned char addr_high; unsigned int netmask; addr_high = ...; /* highest byte of IP address */ if(addr_high < 128) netmask = 0xff000000; else if(addr_high < 192) netmask = 0xffff0000; else if(addr_high < 224) netmask = 0xffffff00; else /* multicast or class E -- not particularly useful */ netmask = 0xffffffff; -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ Never trust an operating system you don't have sources for. ;-)
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