blob: 77783cc850256fea91e7c0c003da2775f6232ec0 [file] [log] [blame]
/*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <arpa/inet.h>
#include <stdio.h>
int main(int argc, char* argv[])
{
if (argc < 1)
{
return 1;
}
if (argc != 2)
{
fprintf(stderr, "Usage: %s <ip address>\n", argv[0]);
return 1;
}
union
{
struct in_addr in;
struct in6_addr in6;
} buf;
int af = AF_INET6;
if (inet_pton(af, argv[1], &buf) != 1)
{
af = AF_INET;
if (inet_pton(af, argv[1], &buf) != 1)
{
fprintf(stderr, "Invalid IP Address: %s\n", argv[1]);
return 2;
}
}
char str[INET6_ADDRSTRLEN];
if (inet_ntop(af, &buf, str, sizeof(str)) == NULL)
{
return 1;
}
printf("%s\n", str);
return 0;
}