static void test_dns_name_normalize_one(const char *what, const char *expect, int ret) {
_cleanup_free_ char *t = NULL;
int r;
r = dns_name_normalize(what, &t);
assert_se(r == ret);
if (r < 0)
return;
assert_se(streq_ptr(expect, t));
}
static int bus_method_resolve_hostname(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
_cleanup_(dns_question_unrefp) DnsQuestion *question = NULL;
Manager *m = userdata;
const char *hostname;
int family, ifindex;
uint64_t flags;
DnsQuery *q;
int r;
assert(bus);
assert(message);
assert(m);
r = sd_bus_message_read(message, "isit", &ifindex, &hostname, &family, &flags);
if (r < 0)
return r;
if (!IN_SET(family, AF_INET, AF_INET6, AF_UNSPEC))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown address family %i", family);
r = dns_name_normalize(hostname, NULL);
if (r < 0)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid hostname '%s'", hostname);
r = check_ifindex_flags(ifindex, &flags, error);
if (r < 0)
return r;
question = dns_question_new(family == AF_UNSPEC ? 2 : 1);
if (!question)
return -ENOMEM;
if (family != AF_INET6) {
_cleanup_(dns_resource_key_unrefp) DnsResourceKey *key = NULL;
key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, hostname);
if (!key)
return -ENOMEM;
r = dns_question_add(question, key);
if (r < 0)
return r;
}
if (family != AF_INET) {
_cleanup_(dns_resource_key_unrefp) DnsResourceKey *key = NULL;
key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_AAAA, hostname);
if (!key)
return -ENOMEM;
r = dns_question_add(question, key);
if (r < 0)
return r;
}
r = dns_query_new(m, &q, question, ifindex, flags);
if (r < 0)
return r;
q->request = sd_bus_message_ref(message);
q->request_family = family;
q->request_hostname = hostname;
q->complete = bus_method_resolve_hostname_complete;
r = dns_query_bus_track(q, bus, message);
if (r < 0)
return r;
r = dns_query_go(q);
if (r < 0) {
dns_query_free(q);
if (r == -ESRCH)
sd_bus_error_setf(error, BUS_ERROR_NO_NAME_SERVERS, "No appropriate name servers or networks for name found");
return r;
}
return 1;
}