return 0;
eaddrinuse:
- log_warning("There appears to be another LLMNR respondering running. Turning off LLMNR support.");
+ log_warning("There appears to be another LLMNR responder running. Turning off LLMNR support.");
m->llmnr_support = SUPPORT_NO;
manager_llmnr_stop(m);
}
static void write_resolv_conf_search(const char *domain, FILE *f,
- unsigned *length, unsigned *count) {
+ unsigned *count, unsigned *length) {
assert(domain);
assert(f);
assert(length);
_cleanup_(dns_packet_unrefp) DnsPacket *p = NULL;
union {
struct cmsghdr header; /* For alignment */
- uint8_t buffer[CMSG_SPACE(CONST_MAX(sizeof(struct in_pktinfo), sizeof(struct in6_pktinfo)))
+ uint8_t buffer[CMSG_SPACE(MAXSIZE(struct in_pktinfo, struct in6_pktinfo))
+ CMSG_SPACE(int) /* ttl/hoplimit */
+ EXTRA_CMSG_SPACE /* kernel appears to require extra buffer space */];
} control;
return r;
}
+/* lo having ifindex 1 is hardcoded in the kernel */
+#define LOOPBACK_IFINDEX 1
+
int manager_ifindex_is_loopback(Manager *m, int ifindex) {
Link *l;
assert(m);
return -EINVAL;
l = hashmap_get(m->links, INT_TO_PTR(ifindex));
- if (l->flags & IFF_LOOPBACK)
+ if (!l)
+ /* in case we don't yet track the link, rely on the hardcoded value */
+ return ifindex == LOOPBACK_IFINDEX;
+ else if (l->flags & IFF_LOOPBACK)
return 1;
return 0;