Date: Wed, 24 Oct 2001 09:45:34 -0700 From: Peter Wemm <peter@wemm.org> To: Adam Stouffer <astouffer@adelphia.net> Cc: freebsd-alpha@FreeBSD.ORG, Darren Reed <darrenr@reed.wattle.id.au> Subject: ipfilter bug (was: Re: compiler bugs? ) Message-ID: <20011024164534.857FF39F3@overcee.netplex.com.au> In-Reply-To: <4.3.2.7.2.20011024003858.00b43500@pop>
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Adam Stouffer wrote: > I'm trying to get ipfilter compiled so this box can be made into a > firewall. After getting the latest ipfilter sources (3.4.21) I follow the > instructions and type 'make freebsd4' after a minute or so it stops with > this error: > > cc1: warnings being treated as errors > ../../ip_auth.c: In function `fr_auth_ioctl': > ../../ip_auth.c:344: warning: comparison is always false due to limited > range of data type > *** Error code 1 > > Line 344 shows: > > if (cmd == SIOCRMAFR) { > > After emailing Darren Reed he says its because of a compiler bug. Is this > true? 4.4 release also ships with the same 2.95.3 version of gcc. Also why > is ipfilter not included in the ports tree? Thanks. Nope. It is a code bug in ipfilter: int fr_auth_ioctl(data, mode, cmd, fr, frptr) caddr_t data; int mode; #if defined(__NetBSD__) || defined(__OpenBSD__) || (FreeBSD_version >= 300003) ^^^^^^^^^^^^^^^^^^^ u_long cmd; #else int cmd; #endif It is __FreeBSD_version, not FreeBSD_version. This means that it is using the 'int cmd' form, which is not large enough to represent the SIOCRMAFR ioctl value. > Adam Cheers, -Peter -- Peter Wemm - peter@FreeBSD.org; peter@yahoo-inc.com; peter@netplex.com.au "All of this is for nothing if we don't go to the stars" - JMS/B5 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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