Hi libc folks, iptables --insert --source localhost ... is currently creating duplicate entries.
I believe this is because of a problem in gethostbyname("localhost") that
returns duplicate answers.
Attached is a tiny test case.
./main
127.0.0.1
120.0.0.1
If I comment out "::1 localhost" in my /etc/hosts file, I only get one answer:
./main
127.0.0.1
Has anything like that bent repported/fixed recently?
#include <stdio.h>
#include <netdb.h>
#include <arpa/inet.h>
int main() {
struct hostent *host;
struct in_addr **addr;
host = gethostbyname("localhost");
if (!host
|| host->h_addrtype != AF_INET
|| host->h_length != sizeof(struct in_addr))
return -1;
for(addr=host->h_addr_list; *addr; ++addr)
puts(inet_ntoa(**addr));
return 0;
}
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