Control: reassign -1 iputils Control: retitle -1 ping6 should respect the scope_id returned by getaddrinfo
Hi everyone, Am Freitag, den 03.05.2013, 13:22 +0200 schrieb Lennart Poettering: > We currently filter addresses of HOST and NOWHERE scope, but local > addresses should generally be fine. > > > The alternative would be to return addresses with %interface appended, > > but I did not investigate how to do that. > > This is done by filling in the scopeid field, which we do. > >[..] > > But anyway, AFAICS we already do the right thing here anyway, and local > addresses should be unproblematic. from this I wondered if ping6 is the problem, but it seem to look good (despite a possibly related bug at https://bugzilla.redhat.com/show_bug.cgi?id=505044). But it seems that the scope id is not really passed all the way down to the user. Using the attached test code, I get: $ ./test kirk Scope id returned for ./test: 0 So is this a bug in the libc? Greetings, Joachim -- Joachim "nomeata" Breitner Debian Developer nome...@debian.org | ICQ# 74513189 | GPG-Keyid: 4743206C JID: nome...@joachim-breitner.de | http://people.debian.org/~nomeata
#include <stdio.h>
#include <string.h>
#include <linux/filter.h>
#include <stdlib.h>
#include <netinet/ip6.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
int main(int argc, char *argv[])
{
if (argc < 2) {
printf("Usage: %s hostname\n", argv[0]);
exit(1);
}
struct addrinfo hints, *ai;
struct sockaddr_in6 *addr;
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_INET6;
getaddrinfo(argv[1], 0, &hints, &ai);
addr = (struct sockaddr_in6 *)(ai->ai_addr);
fprintf(stdout, "Scope id returned for %s: %d\n", argv[1], addr->sin6_scope_id);
}
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