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Current Path: /usr/src/contrib/ipfilter

📁 ..
📄 BNF(3.52 KB)
📄 BugReport(409 B)
📄 HISTORY(55.43 KB)
📄 LICENCE(612 B)
📄 Makefile(14.48 KB)
📄 NAT.FreeBSD(2.84 KB)
📄 README(4.53 KB)
📄 STYLE.TXT(1.96 KB)
📄 WhatsNew50.txt(2.26 KB)
📄 Y2K(48 B)
📄 arc4random.c(5.03 KB)
📄 bpf-ipf.h(13.72 KB)
📄 bpf_filter.c(12.32 KB)
📄 genmask.c(1.14 KB)
📄 ip_dstlist.c(43.79 KB)
📄 ip_dstlist.h(1.43 KB)
📄 ip_fil.c(14.13 KB)
📄 ip_fil_compat.c(122.12 KB)
📄 ip_msnrpc_pxy.c(6.25 KB)
📄 ipf.h(11.97 KB)
📄 ipf_rb.h(10.37 KB)
📁 iplang
📄 ipmon.h(3.27 KB)
📁 ipsend
📄 ipt.h(536 B)
📄 kmem.h(526 B)
📁 l4check
📁 lib
📁 man
📄 md5.c(11.36 KB)
📄 md5.h(3.11 KB)
📄 mkfilters(2.62 KB)
📄 mlfk_rule.c(1.23 KB)
📄 opt_inet6.h(14 B)
📄 opts.h(1.45 KB)
📄 pcap-ipf.h(642 B)
📄 radix_ipf.c(41.92 KB)
📄 radix_ipf.h(2.64 KB)
📁 rules
📁 samples
📄 snoop.h(664 B)
📁 sys
📁 tools

Editing: genmask.c

/*
 * Copyright (C) 2012 by Darren Reed.
 *
 * See the IPFILTER.LICENCE file for details on licencing.
 *
 * $Id$
 */

#include "ipf.h"

int genmask(family, msk, mskp)
	int family;
	char *msk;
	i6addr_t *mskp;
{
	char *endptr = 0L;
	u_32_t addr;
	int bits;

if (strchr(msk, '.') || strchr(msk, 'x') || strchr(msk, ':')) {
		/* possibly of the form xxx.xxx.xxx.xxx
		 * or 0xYYYYYYYY */
		switch (family)
		{
#ifdef USE_INET6
		case AF_INET6 :
			if (inet_pton(AF_INET6, msk, &mskp->in4) != 1)
				return -1;
			break;
#endif
		case AF_INET :
			if (inet_aton(msk, &mskp->in4) == 0)
				return -1;
			break;
		default :
			return -1;
			/*NOTREACHED*/
		}
	} else {
		/*
		 * set x most significant bits
		 */
		bits = (int)strtol(msk, &endptr, 0);

switch (family)
		{
		case AF_INET6 :
			if ((*endptr != '\0') || (bits < 0) || (bits > 128))
				return -1;
			fill6bits(bits, mskp->i6);
			break;
		case AF_INET :
			if (*endptr != '\0' || bits > 32 || bits < 0)
				return -1;
			if (bits == 0)
				addr = 0;
			else
				addr = htonl(0xffffffff << (32 - bits));
			mskp->in4.s_addr = addr;
			break;
		default :
			return -1;
			/*NOTREACHED*/
		}
	}
	return 0;
}

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Editing: genmask.c

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