50 lines
906 B
C
50 lines
906 B
C
/* $NetBSD: hostnum.c,v 1.5 2005/02/08 07:01:53 martti Exp $ */
|
|
|
|
/*
|
|
* Copyright (C) 1993-2001 by Darren Reed.
|
|
*
|
|
* See the IPFILTER.LICENCE file for details on licencing.
|
|
*
|
|
* Id: hostnum.c,v 1.10.2.1 2004/12/09 19:41:20 darrenr Exp
|
|
*/
|
|
|
|
#include <ctype.h>
|
|
|
|
#include "ipf.h"
|
|
|
|
|
|
/*
|
|
* returns an ip address as a long var as a result of either a DNS lookup or
|
|
* straight inet_addr() call
|
|
*/
|
|
int hostnum(ipa, host, linenum, ifname)
|
|
u_32_t *ipa;
|
|
char *host;
|
|
int linenum;
|
|
char *ifname;
|
|
{
|
|
struct in_addr ip;
|
|
|
|
if (!strcasecmp("any", host) ||
|
|
(ifname && *ifname && !strcasecmp(ifname, host)))
|
|
return 0;
|
|
|
|
#ifdef USE_INET6
|
|
if (use_inet6) {
|
|
if (inet_pton(AF_INET6, host, ipa) == 1)
|
|
return 0;
|
|
else
|
|
return -1;
|
|
}
|
|
#endif
|
|
if (ISDIGIT(*host) && inet_aton(host, &ip)) {
|
|
*ipa = ip.s_addr;
|
|
return 0;
|
|
}
|
|
|
|
if (!strcasecmp("<thishost>", host))
|
|
host = thishost;
|
|
|
|
return gethost(host, ipa);
|
|
}
|