>>  docker run --rm -it ubuntu:12.04 bash
root@63fe1bb724ae:/# ( apt-get update && apt-get install -y build-essential ) &> /dev/null
root@63fe1bb724ae:/# cat > test.c <<EOF
> #include <arpa/inet.h>
> #include <netdb.h>
> #include <stdio.h>
> #include <stdlib.h>
> #include <string.h>
>
> int main() {
>         struct addrinfo *result;
>         struct addrinfo *res;
>         int error;
>         char *host = "ya.ru";
>         char buf[512];
>
>         /* resolve the domain name into a list of addresses */
>         error = getaddrinfo(host, NULL, NULL, &result);
>         if (error != 0) {
>                 if (error == EAI_SYSTEM) {
>                         perror("getaddrinfo");
>                 } else {
>                         fprintf(stderr, "error in getaddrinfo: %s\n", gai_strerror(error));
>                 }
>                 exit(EXIT_FAILURE);
>         }
>
>         for (res = result; res != NULL; res = res->ai_next) {
>                 if (res->ai_family == AF_INET)
>                         inet_ntop(res->ai_family, &((struct sockaddr_in *)res->ai_addr)->sin_addr, buf, sizeof(buf));
>                 else if (res->ai_family == AF_INET6)
>                         inet_ntop(res->ai_family, &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, buf, sizeof(buf));
>                 else
>                         continue;
>                 puts(buf);
>         }
>
>         freeaddrinfo(result);
>         return 0;
> }
> EOF
root@63fe1bb724ae:/# gcc test.c -o test
root@63fe1bb724ae:/# ./test | uniq
213.180.193.3
93.158.134.3
213.180.204.3
root@63fe1bb724ae:/# dpkg -l libc6
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                                                  Version                                               Description
+++-=====================================================-=====================================================-==========================================================================================================================
ii  libc6                                                 2.15-0ubuntu10.17                                     Embedded GNU C Library: Shared libraries
root@63fe1bb724ae:/# exit