Date: Wed, 2 Oct 2002 14:15:42 +0300 (EEST) From: Andrey Simonenko <simon@simon.org.ua> To: freebsd-net@freebsd.org Subject: Q about sbin/ipfw2.c:list() Message-ID: <20021002141006.A1093-100000@lion.com.ua>
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Hello, Why is it needed to check both r->rulenum and (void *)r < lim in sbin/ipfw2.c:list() ? /* * Count static rules. They have variable size so we * need to scan the list to count them. */ for (nstat = 1, r = data, lim = data + nbytes; r->rulenum < 65535 && (void *)r < lim; ++nstat, r = (void *)r + RULESIZE(r) ) ; /* nothing */ Can I simply check r->rulenum < 65535 as it is done in sbin/ipfw.c:list() ? TIA ps: please CC to my email. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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