47 lines
1 KiB
C
47 lines
1 KiB
C
/*
|
|
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
|
|
*
|
|
* SPDX-License-Identifier: MPL-2.0
|
|
*
|
|
* 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 https://mozilla.org/MPL/2.0/.
|
|
*
|
|
* See the COPYRIGHT file distributed with this work for additional
|
|
* information regarding copyright ownership.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <isc/net.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);
|
|
}
|