1 files changed, 45 insertions, 3 deletions

diff --git a/shared-bindings/wifi/Radio.c b/shared-bindings/wifi/Radio.c
index 928f21da9..b548d66f6 100644
--- a/shared-bindings/wifi/Radio.c
+++ b/shared-bindings/wifi/Radio.c
@@ -24,11 +24,13 @@
  * THE SOFTWARE.
  */
 
+#include "shared-bindings/wifi/__init__.h"
+
+#include <regex.h>
 #include <string.h>
 
-#include "py/objproperty.h"
 #include "py/runtime.h"
-#include "shared-bindings/wifi/__init__.h"
+#include "py/objproperty.h"
 
 //| class Radio:
 //|     """Native wifi radio.
@@ -50,7 +52,6 @@
 //|
 STATIC mp_obj_t wifi_radio_get_enabled(mp_obj_t self) {
     return mp_obj_new_bool(common_hal_wifi_radio_get_enabled(self));
-
 }
 MP_DEFINE_CONST_FUN_OBJ_1(wifi_radio_get_enabled_obj, wifi_radio_get_enabled);
 
@@ -102,6 +103,45 @@ STATIC mp_obj_t wifi_radio_stop_scanning_networks(mp_obj_t self_in) {
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(wifi_radio_stop_scanning_networks_obj, wifi_radio_stop_scanning_networks);
 
+//|     hostname: ReadableBuffer
+//|     """Hostname for wifi interface. When the hostname is altered after interface started/connected
+//|        the changes would only be reflected once the interface restarts/reconnects."""
+//|
+STATIC mp_obj_t wifi_radio_get_hostname(mp_obj_t self_in) {
+    wifi_radio_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    return common_hal_wifi_radio_get_hostname(self);
+}
+MP_DEFINE_CONST_FUN_OBJ_1(wifi_radio_get_hostname_obj, wifi_radio_get_hostname);
+
+STATIC mp_obj_t wifi_radio_set_hostname(mp_obj_t self_in, mp_obj_t hostname_in) {
+    mp_buffer_info_t hostname;
+    mp_get_buffer_raise(hostname_in, &hostname, MP_BUFFER_READ);
+
+    if (hostname.len < 1 || hostname.len > 253) {
+        mp_raise_ValueError(translate("Hostname must be between 1 and 253 characters"));
+    }
+
+    regex_t regex; //validate hostname according to RFC 1123
+    regcomp(&regex,"^(([a-z0-9]|[a-z0-9][a-z0-9\\-]{0,61}[a-z0-9])\\.)*([a-z0-9]|[a-z0-9][a-z0-9\\-]{0,61}[a-z0-9])$", REG_EXTENDED | REG_ICASE | REG_NOSUB);
+    if (regexec(&regex, hostname.buf, 0, NULL, 0)) {
+        mp_raise_ValueError(translate("invalid hostname"));
+    }
+    regfree(&regex);
+
+    wifi_radio_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    common_hal_wifi_radio_set_hostname(self, hostname.buf);
+
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_2(wifi_radio_set_hostname_obj, wifi_radio_set_hostname);
+
+const mp_obj_property_t wifi_radio_hostname_obj = {
+    .base.type = &mp_type_property,
+    .proxy = {(mp_obj_t)&wifi_radio_get_hostname_obj,
+              (mp_obj_t)&wifi_radio_set_hostname_obj,
+              (mp_obj_t)&mp_const_none_obj},
+};
+
 //|     def connect(self, ssid: ReadableBuffer, password: ReadableBuffer = b"", *, channel: Optional[int] = 0, timeout: Optional[float] = None) -> bool:
 //|         """Connects to the given ssid and waits for an ip address. Reconnections are handled
 //|            automatically once one connection succeeds."""
@@ -216,6 +256,8 @@ STATIC const mp_rom_map_elem_t wifi_radio_locals_dict_table[] = {
     { MP_ROM_QSTR(MP_QSTR_start_scanning_networks),    MP_ROM_PTR(&wifi_radio_start_scanning_networks_obj) },
     { MP_ROM_QSTR(MP_QSTR_stop_scanning_networks),    MP_ROM_PTR(&wifi_radio_stop_scanning_networks_obj) },
 
+    { MP_ROM_QSTR(MP_QSTR_hostname),    MP_ROM_PTR(&wifi_radio_hostname_obj) },
+
     { MP_ROM_QSTR(MP_QSTR_connect),    MP_ROM_PTR(&wifi_radio_connect_obj) },
     // { MP_ROM_QSTR(MP_QSTR_connect_to_enterprise),    MP_ROM_PTR(&wifi_radio_connect_to_enterprise_obj) },