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-rw-r--r--bin/tools/arpaname.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/bin/tools/arpaname.c b/bin/tools/arpaname.c
new file mode 100644
index 0000000..c154ee5
--- /dev/null
+++ b/bin/tools/arpaname.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+
+#include "config.h"
+
+#include <isc/net.h>
+#include <isc/print.h>
+
+#include <stdio.h>
+
+#define UNUSED(x) (void)(x)
+
+int
+main(int argc, char *argv[]) {
+ unsigned char buf[16];
+ int i;
+
+ UNUSED(argc);
+
+ while (argv[1]) {
+ if (inet_pton(AF_INET6, argv[1], buf) == 1) {
+ for (i = 15; i >= 0; i--)
+ fprintf(stdout, "%X.%X.", buf[i] & 0xf,
+ (buf[i] >> 4) & 0xf);
+ fprintf(stdout, "IP6.ARPA\n");
+ argv++;
+ continue;
+ }
+ if (inet_pton(AF_INET, argv[1], buf) == 1) {
+ fprintf(stdout, "%u.%u.%u.%u.IN-ADDR.ARPA\n",
+ buf[3], buf[2], buf[1], buf[0]);
+ argv++;
+ continue;
+ }
+ return (1);
+ }
+ fflush(stdout);
+ return(ferror(stdout));
+}