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stm32/modusocket: Make getaddrinfo() work when passed an IP address.

This commit is contained in:
Damien George 2017-10-16 13:17:15 +11:00
parent 65ba481cb0
commit 5d7b0b237b
1 changed files with 39 additions and 19 deletions
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58
ports/stm32/modusocket.c
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@ -390,29 +390,49 @@ STATIC mp_obj_t mod_usocket_getaddrinfo(mp_obj_t host_in, mp_obj_t port_in) {
size_t hlen;
const char *host = mp_obj_str_get_data(host_in, &hlen);
mp_int_t port = mp_obj_get_int(port_in);
uint8_t out_ip[MOD_NETWORK_IPADDR_BUF_SIZE];
bool have_ip = false;
// find a NIC that can do a name lookup
for (mp_uint_t i = 0; i < MP_STATE_PORT(mod_network_nic_list).len; i++) {
mp_obj_t nic = MP_STATE_PORT(mod_network_nic_list).items[i];
mod_network_nic_type_t *nic_type = (mod_network_nic_type_t*)mp_obj_get_type(nic);
if (nic_type->gethostbyname != NULL) {
uint8_t out_ip[MOD_NETWORK_IPADDR_BUF_SIZE];
int ret = nic_type->gethostbyname(nic, host, hlen, out_ip);
if (ret != 0) {
// TODO CPython raises: socket.gaierror: [Errno -2] Name or service not known
mp_raise_OSError(ret);
}
mp_obj_tuple_t *tuple = mp_obj_new_tuple(5, NULL);
tuple->items[0] = MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_AF_INET);
tuple->items[1] = MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_SOCK_STREAM);
tuple->items[2] = MP_OBJ_NEW_SMALL_INT(0);
tuple->items[3] = MP_OBJ_NEW_QSTR(MP_QSTR_);
tuple->items[4] = netutils_format_inet_addr(out_ip, port, NETUTILS_BIG);
return mp_obj_new_list(1, (mp_obj_t*)&tuple);
if (hlen > 0) {
// check if host is already in IP form
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
netutils_parse_ipv4_addr(host_in, out_ip, NETUTILS_BIG);
have_ip = true;
nlr_pop();
} else {
// swallow exception: host was not in IP form so need to do DNS lookup
}
}
nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "no available NIC"));
if (!have_ip) {
// find a NIC that can do a name lookup
for (mp_uint_t i = 0; i < MP_STATE_PORT(mod_network_nic_list).len; i++) {
mp_obj_t nic = MP_STATE_PORT(mod_network_nic_list).items[i];
mod_network_nic_type_t *nic_type = (mod_network_nic_type_t*)mp_obj_get_type(nic);
if (nic_type->gethostbyname != NULL) {
int ret = nic_type->gethostbyname(nic, host, hlen, out_ip);
if (ret != 0) {
// TODO CPython raises: socket.gaierror: [Errno -2] Name or service not known
mp_raise_OSError(ret);
}
have_ip = true;
break;
}
}
}
if (!have_ip) {
nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "no available NIC"));
}
mp_obj_tuple_t *tuple = mp_obj_new_tuple(5, NULL);
tuple->items[0] = MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_AF_INET);
tuple->items[1] = MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_SOCK_STREAM);
tuple->items[2] = MP_OBJ_NEW_SMALL_INT(0);
tuple->items[3] = MP_OBJ_NEW_QSTR(MP_QSTR_);
tuple->items[4] = netutils_format_inet_addr(out_ip, port, NETUTILS_BIG);
return mp_obj_new_list(1, (mp_obj_t*)&tuple);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_usocket_getaddrinfo_obj, mod_usocket_getaddrinfo);