--- a/hyper-v.tools.hv.hv_kvp_daemon.c +++ b/hyper-v.tools.hv.hv_kvp_daemon.c @@ -1335,6 +1335,7 @@ kvp_get_domain_name(char *buffer, int le struct addrinfo hints, *info ; int error = 0; + return; gethostname(buffer, length); memset(&hints, 0, sizeof(hints)); hints.ai_family = AF_INET; /*Get only ipv4 addrinfo. */ @@ -1572,6 +1573,12 @@ int main(int argc, char *argv[]) switch (hv_msg->body.kvp_enum_data.index) { case FullyQualifiedDomainName: + /* + * The API is undocumented. + * The Host can not possibly care about DNS within the guest network + * The time it takes to get the hostname is much shorter than a DNS lookup. + */ + gethostname(full_domain_name, sizeof(full_domain_name)); strcpy(key_value, full_domain_name); strcpy(key_name, "FullyQualifiedDomainName"); break;