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-rw-r--r--contrib/ipfilter/lib/hostnum.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/contrib/ipfilter/lib/hostnum.c b/contrib/ipfilter/lib/hostnum.c
new file mode 100644
index 0000000..c62e4a1
--- /dev/null
+++ b/contrib/ipfilter/lib/hostnum.c
@@ -0,0 +1,49 @@
+/* $NetBSD$ */
+
+/*
+ * 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);
+}
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