1 files changed, 194 insertions, 0 deletions
diff --git a/circuitpython/shared-bindings/ipaddress/IPv4Address.c b/circuitpython/shared-bindings/ipaddress/IPv4Address.c
new file mode 100644
index 0000000..2320432
--- /dev/null
+++ b/circuitpython/shared-bindings/ipaddress/IPv4Address.c
@@ -0,0 +1,194 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Dan Halbert for Adafruit Industries
+ * Copyright (c) 2018 Artur Pacholec
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "shared-bindings/ipaddress/IPv4Address.h"
+
+#include <string.h>
+#include <stdio.h>
+
+#include "py/objproperty.h"
+#include "py/objstr.h"
+#include "py/runtime.h"
+#include "shared-bindings/ipaddress/__init__.h"
+
+//| class IPv4Address:
+//|     """Encapsulates an IPv4 address."""
+//|
+
+//|     def __init__(self, address: Union[int, str, bytes]) -> None:
+//|         """Create a new IPv4Address object encapsulating the address value.
+//|
+//|            The value itself can either be bytes or a string formatted address."""
+//|         ...
+//|
+STATIC mp_obj_t ipaddress_ipv4address_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
+    enum { ARG_address };
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_address, MP_ARG_OBJ | MP_ARG_REQUIRED },
+    };
+
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+
+    const mp_obj_t address = args[ARG_address].u_obj;
+
+    uint32_t value;
+    uint8_t *buf = NULL;
+    if (mp_obj_get_int_maybe(address, (mp_int_t *)&value)) {
+        // We're done.
+        buf = (uint8_t *)&value;
+    } else if (mp_obj_is_str(address)) {
+        GET_STR_DATA_LEN(address, str_data, str_len);
+        if (!ipaddress_parse_ipv4address((const char *)str_data, str_len, &value)) {
+            mp_raise_ValueError(translate("Not a valid IP string"));
+        }
+        buf = (uint8_t *)&value;
+    } else {
+        mp_buffer_info_t buf_info;
+        if (mp_get_buffer(address, &buf_info, MP_BUFFER_READ)) {
+            if (buf_info.len != 4) {
+                mp_raise_ValueError_varg(translate("Address must be %d bytes long"), 4);
+            }
+            buf = buf_info.buf;
+        }
+    }
+
+
+    ipaddress_ipv4address_obj_t *self = m_new_obj(ipaddress_ipv4address_obj_t);
+    self->base.type = &ipaddress_ipv4address_type;
+
+    common_hal_ipaddress_ipv4address_construct(self, buf, 4);
+
+    return MP_OBJ_FROM_PTR(self);
+}
+
+//|     packed: bytes
+//|     """The bytes that make up the address (read-only)."""
+//|
+STATIC mp_obj_t ipaddress_ipv4address_get_packed(mp_obj_t self_in) {
+    ipaddress_ipv4address_obj_t *self = MP_OBJ_TO_PTR(self_in);
+
+    return common_hal_ipaddress_ipv4address_get_packed(self);
+}
+MP_DEFINE_CONST_FUN_OBJ_1(ipaddress_ipv4address_get_packed_obj, ipaddress_ipv4address_get_packed);
+
+MP_PROPERTY_GETTER(ipaddress_ipv4address_packed_obj,
+    (mp_obj_t)&ipaddress_ipv4address_get_packed_obj);
+
+//|     version: int
+//|     """4 for IPv4, 6 for IPv6"""
+//|
+STATIC mp_obj_t ipaddress_ipv4address_get_version(mp_obj_t self_in) {
+    ipaddress_ipv4address_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    mp_buffer_info_t buf_info;
+    mp_obj_t address_bytes = common_hal_ipaddress_ipv4address_get_packed(self);
+    mp_get_buffer_raise(address_bytes, &buf_info, MP_BUFFER_READ);
+    mp_int_t version = 6;
+    if (buf_info.len == 4) {
+        version = 4;
+    }
+
+    return MP_OBJ_NEW_SMALL_INT(version);
+}
+MP_DEFINE_CONST_FUN_OBJ_1(ipaddress_ipv4address_get_version_obj, ipaddress_ipv4address_get_version);
+
+MP_PROPERTY_GETTER(ipaddress_ipv4address_version_obj,
+    (mp_obj_t)&ipaddress_ipv4address_get_version_obj);
+
+//|     def __eq__(self, other: object) -> bool:
+//|         """Two Address objects are equal if their addresses and address types are equal."""
+//|         ...
+//|
+STATIC mp_obj_t ipaddress_ipv4address_binary_op(mp_binary_op_t op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
+    switch (op) {
+        // Two Addresses are equal if their address bytes and address_type are equal
+        case MP_BINARY_OP_EQUAL:
+            if (mp_obj_is_type(rhs_in, &ipaddress_ipv4address_type)) {
+                ipaddress_ipv4address_obj_t *lhs = MP_OBJ_TO_PTR(lhs_in);
+                ipaddress_ipv4address_obj_t *rhs = MP_OBJ_TO_PTR(rhs_in);
+                return mp_obj_new_bool(
+                    mp_obj_equal(common_hal_ipaddress_ipv4address_get_packed(lhs),
+                        common_hal_ipaddress_ipv4address_get_packed(rhs)));
+
+            } else {
+                return mp_const_false;
+            }
+
+        default:
+            return MP_OBJ_NULL; // op not supported
+    }
+}
+
+//|     def __hash__(self) -> int:
+//|         """Returns a hash for the IPv4Address data."""
+//|         ...
+//|
+STATIC mp_obj_t ipaddress_ipv4address_unary_op(mp_unary_op_t op, mp_obj_t self_in) {
+    switch (op) {
+        // Two Addresses are equal if their address bytes and address_type are equal
+        case MP_UNARY_OP_HASH: {
+            mp_obj_t bytes = common_hal_ipaddress_ipv4address_get_packed(MP_OBJ_TO_PTR(self_in));
+            GET_STR_HASH(bytes, h);
+            if (h == 0) {
+                GET_STR_DATA_LEN(bytes, data, len);
+                h = qstr_compute_hash(data, len);
+            }
+            return MP_OBJ_NEW_SMALL_INT(h);
+        }
+        default:
+            return MP_OBJ_NULL; // op not supported
+    }
+}
+
+STATIC void ipaddress_ipv4address_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
+    ipaddress_ipv4address_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    mp_buffer_info_t buf_info;
+    mp_obj_t address_bytes = common_hal_ipaddress_ipv4address_get_packed(self);
+    mp_get_buffer_raise(address_bytes, &buf_info, MP_BUFFER_READ);
+
+    const uint8_t *buf = (uint8_t *)buf_info.buf;
+    mp_printf(print, "%d.%d.%d.%d", buf[0], buf[1], buf[2], buf[3]);
+}
+
+STATIC const mp_rom_map_elem_t ipaddress_ipv4address_locals_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_packed),                 MP_ROM_PTR(&ipaddress_ipv4address_packed_obj) },
+};
+
+STATIC MP_DEFINE_CONST_DICT(ipaddress_ipv4address_locals_dict, ipaddress_ipv4address_locals_dict_table);
+
+const mp_obj_type_t ipaddress_ipv4address_type = {
+    { &mp_type_type },
+    .flags = MP_TYPE_FLAG_EXTENDED,
+    .name = MP_QSTR_Address,
+    .make_new = ipaddress_ipv4address_make_new,
+    .locals_dict = (mp_obj_dict_t *)&ipaddress_ipv4address_locals_dict,
+    .print = ipaddress_ipv4address_print,
+    MP_TYPE_EXTENDED_FIELDS(
+        .unary_op = ipaddress_ipv4address_unary_op,
+        .binary_op = ipaddress_ipv4address_binary_op,
+        )
+};