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circuitpython/unix/modsocket.c

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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
* Copyright (c) 2014 Paul Sokolovsky
*
* 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 <stdio.h>
#include <assert.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <errno.h>
#include "py/nlr.h"
#include "py/objtuple.h"
#include "py/objstr.h"
#include "py/runtime.h"
#include "py/stream.h"
#include "py/builtin.h"
/*
The idea of this module is to implement reasonable minimum of
socket-related functions to write typical clients and servers.
The module named "usocket" on purpose, to allow to make
Python-level module more (or fully) compatible with CPython
"socket", e.g.:
---- socket.py ----
from usocket import *
from socket_more_funcs import *
from socket_more_funcs2 import *
-------------------
I.e. this module should stay lean, and more functions (if needed)
should be add to seperate modules (C or Python level).
*/
#define MICROPY_SOCKET_EXTRA (0)
typedef struct _mp_obj_socket_t {
mp_obj_base_t base;
int fd;
} mp_obj_socket_t;
STATIC const mp_obj_type_t usocket_type;
// Helper functions
#define RAISE_ERRNO(err_flag, error_val) \
{ if (err_flag == -1) \
{ nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(error_val))); } }
static inline mp_obj_t mp_obj_from_sockaddr(const struct sockaddr *addr, socklen_t len) {
return mp_obj_new_bytes((const byte *)addr, len);
}
STATIC mp_obj_socket_t *socket_new(int fd) {
mp_obj_socket_t *o = m_new_obj(mp_obj_socket_t);
o->base.type = &usocket_type;
o->fd = fd;
return o;
}
STATIC void socket_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
(void)kind;
mp_obj_socket_t *self = self_in;
mp_printf(print, "<_socket %d>", self->fd);
}
STATIC mp_uint_t socket_read(mp_obj_t o_in, void *buf, mp_uint_t size, int *errcode) {
mp_obj_socket_t *o = o_in;
mp_int_t r = read(o->fd, buf, size);
if (r == -1) {
*errcode = errno;
return MP_STREAM_ERROR;
}
return r;
}
STATIC mp_uint_t socket_write(mp_obj_t o_in, const void *buf, mp_uint_t size, int *errcode) {
mp_obj_socket_t *o = o_in;
mp_int_t r = write(o->fd, buf, size);
if (r == -1) {
*errcode = errno;
return MP_STREAM_ERROR;
}
return r;
}
STATIC mp_obj_t socket_close(mp_obj_t self_in) {
mp_obj_socket_t *self = self_in;
close(self->fd);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(socket_close_obj, socket_close);
STATIC mp_obj_t socket_fileno(mp_obj_t self_in) {
mp_obj_socket_t *self = self_in;
return MP_OBJ_NEW_SMALL_INT(self->fd);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(socket_fileno_obj, socket_fileno);
STATIC mp_obj_t socket_connect(mp_obj_t self_in, mp_obj_t addr_in) {
mp_obj_socket_t *self = self_in;
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(addr_in, &bufinfo, MP_BUFFER_READ);
int r = connect(self->fd, (const struct sockaddr *)bufinfo.buf, bufinfo.len);
RAISE_ERRNO(r, errno);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_connect_obj, socket_connect);
STATIC mp_obj_t socket_bind(mp_obj_t self_in, mp_obj_t addr_in) {
mp_obj_socket_t *self = self_in;
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(addr_in, &bufinfo, MP_BUFFER_READ);
int r = bind(self->fd, (const struct sockaddr *)bufinfo.buf, bufinfo.len);
RAISE_ERRNO(r, errno);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_bind_obj, socket_bind);
STATIC mp_obj_t socket_listen(mp_obj_t self_in, mp_obj_t backlog_in) {
mp_obj_socket_t *self = self_in;
int r = listen(self->fd, MP_OBJ_SMALL_INT_VALUE(backlog_in));
RAISE_ERRNO(r, errno);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_listen_obj, socket_listen);
STATIC mp_obj_t socket_accept(mp_obj_t self_in) {
mp_obj_socket_t *self = self_in;
struct sockaddr addr;
socklen_t addr_len = sizeof(addr);
int fd = accept(self->fd, &addr, &addr_len);
RAISE_ERRNO(fd, errno);
mp_obj_tuple_t *t = mp_obj_new_tuple(2, NULL);
t->items[0] = socket_new(fd);
t->items[1] = mp_obj_new_bytearray(addr_len, &addr);
return t;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(socket_accept_obj, socket_accept);
// Note: besides flag param, this differs from read() in that
// this does not swallow blocking errors (EAGAIN, EWOULDBLOCK) -
// these would be thrown as exceptions.
STATIC mp_obj_t socket_recv(mp_uint_t n_args, const mp_obj_t *args) {
mp_obj_socket_t *self = args[0];
int sz = MP_OBJ_SMALL_INT_VALUE(args[1]);
int flags = 0;
if (n_args > 2) {
flags = MP_OBJ_SMALL_INT_VALUE(args[2]);
}
byte *buf = m_new(byte, sz);
int out_sz = recv(self->fd, buf, sz, flags);
RAISE_ERRNO(out_sz, errno);
mp_obj_t ret = mp_obj_new_str_of_type(&mp_type_bytes, buf, out_sz);
m_del(char, buf, sz);
return ret;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(socket_recv_obj, 2, 3, socket_recv);
STATIC mp_obj_t socket_recvfrom(mp_uint_t n_args, const mp_obj_t *args) {
mp_obj_socket_t *self = args[0];
int sz = MP_OBJ_SMALL_INT_VALUE(args[1]);
int flags = 0;
if (n_args > 2) {
flags = MP_OBJ_SMALL_INT_VALUE(args[2]);
}
struct sockaddr_storage addr;
socklen_t addr_len = sizeof(addr);
byte *buf = m_new(byte, sz);
int out_sz = recvfrom(self->fd, buf, sz, flags, (struct sockaddr*)&addr, &addr_len);
RAISE_ERRNO(out_sz, errno);
mp_obj_t buf_o = mp_obj_new_str_of_type(&mp_type_bytes, buf, out_sz);
m_del(char, buf, sz);
mp_obj_tuple_t *t = mp_obj_new_tuple(2, NULL);
t->items[0] = buf_o;
t->items[1] = mp_obj_from_sockaddr((struct sockaddr*)&addr, addr_len);
return t;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(socket_recvfrom_obj, 2, 3, socket_recvfrom);
// Note: besides flag param, this differs from write() in that
// this does not swallow blocking errors (EAGAIN, EWOULDBLOCK) -
// these would be thrown as exceptions.
STATIC mp_obj_t socket_send(mp_uint_t n_args, const mp_obj_t *args) {
mp_obj_socket_t *self = args[0];
int flags = 0;
if (n_args > 2) {
flags = MP_OBJ_SMALL_INT_VALUE(args[2]);
}
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(args[1], &bufinfo, MP_BUFFER_READ);
int out_sz = send(self->fd, bufinfo.buf, bufinfo.len, flags);
RAISE_ERRNO(out_sz, errno);
return MP_OBJ_NEW_SMALL_INT(out_sz);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(socket_send_obj, 2, 3, socket_send);
STATIC mp_obj_t socket_sendto(mp_uint_t n_args, const mp_obj_t *args) {
mp_obj_socket_t *self = args[0];
int flags = 0;
mp_obj_t dst_addr = args[2];
if (n_args > 3) {
flags = MP_OBJ_SMALL_INT_VALUE(args[2]);
dst_addr = args[3];
}
mp_buffer_info_t bufinfo, addr_bi;
mp_get_buffer_raise(args[1], &bufinfo, MP_BUFFER_READ);
mp_get_buffer_raise(dst_addr, &addr_bi, MP_BUFFER_READ);
int out_sz = sendto(self->fd, bufinfo.buf, bufinfo.len, flags,
(struct sockaddr *)addr_bi.buf, addr_bi.len);
RAISE_ERRNO(out_sz, errno);
return MP_OBJ_NEW_SMALL_INT(out_sz);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(socket_sendto_obj, 3, 4, socket_sendto);
STATIC mp_obj_t socket_setsockopt(mp_uint_t n_args, const mp_obj_t *args) {
(void)n_args; // always 4
mp_obj_socket_t *self = args[0];
int level = MP_OBJ_SMALL_INT_VALUE(args[1]);
int option = mp_obj_get_int(args[2]);
const void *optval;
socklen_t optlen;
int val;
if (MP_OBJ_IS_INT(args[3])) {
val = mp_obj_int_get_truncated(args[3]);
optval = &val;
optlen = sizeof(val);
} else {
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(args[3], &bufinfo, MP_BUFFER_READ);
optval = bufinfo.buf;
optlen = bufinfo.len;
}
int r = setsockopt(self->fd, level, option, optval, optlen);
RAISE_ERRNO(r, errno);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(socket_setsockopt_obj, 4, 4, socket_setsockopt);
STATIC mp_obj_t socket_setblocking(mp_obj_t self_in, mp_obj_t flag_in) {
mp_obj_socket_t *self = self_in;
int val = mp_obj_is_true(flag_in);
int flags = fcntl(self->fd, F_GETFL, 0);
RAISE_ERRNO(flags, errno);
if (val) {
flags &= ~O_NONBLOCK;
} else {
flags |= O_NONBLOCK;
}
flags = fcntl(self->fd, F_SETFL, flags);
RAISE_ERRNO(flags, errno);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_setblocking_obj, socket_setblocking);
STATIC mp_obj_t socket_makefile(mp_uint_t n_args, const mp_obj_t *args) {
// TODO: CPython explicitly says that closing returned object doesn't close
// the original socket (Python2 at all says that fd is dup()ed). But we
// save on the bloat.
mp_obj_socket_t *self = args[0];
mp_obj_t *new_args = alloca(n_args * sizeof(mp_obj_t));
memcpy(new_args + 1, args + 1, (n_args - 1) * sizeof(mp_obj_t));
new_args[0] = MP_OBJ_NEW_SMALL_INT(self->fd);
mp_map_t kwargs;
mp_map_init(&kwargs, 0);
return mp_builtin_open(n_args, new_args, &kwargs);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(socket_makefile_obj, 1, 3, socket_makefile);
STATIC mp_obj_t socket_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
(void)type_in;
(void)n_kw;
int family = AF_INET;
int type = SOCK_STREAM;
int proto = 0;
if (n_args > 0) {
assert(MP_OBJ_IS_SMALL_INT(args[0]));
family = MP_OBJ_SMALL_INT_VALUE(args[0]);
if (n_args > 1) {
assert(MP_OBJ_IS_SMALL_INT(args[1]));
type = MP_OBJ_SMALL_INT_VALUE(args[1]);
if (n_args > 2) {
assert(MP_OBJ_IS_SMALL_INT(args[2]));
proto = MP_OBJ_SMALL_INT_VALUE(args[2]);
}
}
}
int fd = socket(family, type, proto);
RAISE_ERRNO(fd, errno);
return socket_new(fd);
}
STATIC const mp_map_elem_t usocket_locals_dict_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_fileno), (mp_obj_t)&socket_fileno_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_makefile), (mp_obj_t)&socket_makefile_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_read), (mp_obj_t)&mp_stream_read_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_readall), (mp_obj_t)&mp_stream_readall_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_readinto), (mp_obj_t)&mp_stream_readinto_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_readline), (mp_obj_t)&mp_stream_unbuffered_readline_obj},
{ MP_OBJ_NEW_QSTR(MP_QSTR_write), (mp_obj_t)&mp_stream_write_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_connect), (mp_obj_t)&socket_connect_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_bind), (mp_obj_t)&socket_bind_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_listen), (mp_obj_t)&socket_listen_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_accept), (mp_obj_t)&socket_accept_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_recv), (mp_obj_t)&socket_recv_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_recvfrom), (mp_obj_t)&socket_recvfrom_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_send), (mp_obj_t)&socket_send_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_sendto), (mp_obj_t)&socket_sendto_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_setsockopt), (mp_obj_t)&socket_setsockopt_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_setblocking), (mp_obj_t)&socket_setblocking_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_close), (mp_obj_t)&socket_close_obj },
};
STATIC MP_DEFINE_CONST_DICT(usocket_locals_dict, usocket_locals_dict_table);
STATIC const mp_stream_p_t usocket_stream_p = {
.read = socket_read,
.write = socket_write,
};
STATIC const mp_obj_type_t usocket_type = {
{ &mp_type_type },
.name = MP_QSTR_socket,
.print = socket_print,
.make_new = socket_make_new,
.getiter = NULL,
.iternext = NULL,
.stream_p = &usocket_stream_p,
.locals_dict = (mp_obj_t)&usocket_locals_dict,
};
#if MICROPY_SOCKET_EXTRA
STATIC mp_obj_t mod_socket_htons(mp_obj_t arg) {
return MP_OBJ_NEW_SMALL_INT(htons(MP_OBJ_SMALL_INT_VALUE(arg)));
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_socket_htons_obj, mod_socket_htons);
STATIC mp_obj_t mod_socket_gethostbyname(mp_obj_t arg) {
assert(MP_OBJ_IS_TYPE(arg, &mp_type_str));
const char *s = mp_obj_str_get_str(arg);
struct hostent *h = gethostbyname(s);
if (h == NULL) {
// CPython: socket.herror
nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(h_errno)));
}
assert(h->h_length == 4);
return mp_obj_new_int(*(int*)*h->h_addr_list);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_socket_gethostbyname_obj, mod_socket_gethostbyname);
#endif // MICROPY_SOCKET_EXTRA
#define BINADDR_MAX_LEN sizeof(struct in6_addr)
STATIC mp_obj_t mod_socket_inet_pton(mp_obj_t family_in, mp_obj_t addr_in) {
int family = mp_obj_get_int(family_in);
byte binaddr[BINADDR_MAX_LEN];
int r = inet_pton(family, mp_obj_str_get_str(addr_in), binaddr);
RAISE_ERRNO(r, errno);
if (r == 0) {
nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(EINVAL)));
}
int binaddr_len = 0;
switch (family) {
case AF_INET:
binaddr_len = sizeof(struct in_addr);
break;
case AF_INET6:
binaddr_len = sizeof(struct in6_addr);
break;
}
return mp_obj_new_bytes(binaddr, binaddr_len);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_socket_inet_pton_obj, mod_socket_inet_pton);
STATIC mp_obj_t mod_socket_getaddrinfo(mp_uint_t n_args, const mp_obj_t *args) {
// TODO: Implement all args
assert(n_args >= 2 && n_args <= 4);
assert(MP_OBJ_IS_STR(args[0]));
const char *host = mp_obj_str_get_str(args[0]);
const char *serv = NULL;
struct addrinfo hints;
char buf[6];
memset(&hints, 0, sizeof(hints));
// getaddrinfo accepts port in string notation, so however
// it may seem stupid, we need to convert int to str
if (MP_OBJ_IS_SMALL_INT(args[1])) {
unsigned port = (unsigned short)MP_OBJ_SMALL_INT_VALUE(args[1]);
snprintf(buf, sizeof(buf), "%u", port);
serv = buf;
hints.ai_flags = AI_NUMERICSERV;
#ifdef __UCLIBC_MAJOR__
#if __UCLIBC_MAJOR__ == 0 && (__UCLIBC_MINOR__ < 9 || (__UCLIBC_MINOR__ == 9 && __UCLIBC_SUBLEVEL__ <= 32))
// "warning" requires -Wno-cpp which is a relatively new gcc option, so we choose not to use it.
//#warning Working around uClibc bug with numeric service name
// Older versions og uClibc have bugs when numeric ports in service
// arg require also hints.ai_socktype (or hints.ai_protocol) != 0
// This actually was fixed in 0.9.32.1, but uClibc doesn't allow to
// test for that.
// http://git.uclibc.org/uClibc/commit/libc/inet/getaddrinfo.c?id=bc3be18145e4d5
// Note that this is crude workaround, precluding UDP socket addresses
// to be returned. TODO: set only if not set by Python args.
hints.ai_socktype = SOCK_STREAM;
#endif
#endif
} else {
serv = mp_obj_str_get_str(args[1]);
}
if (n_args > 2) {
hints.ai_family = MP_OBJ_SMALL_INT_VALUE(args[2]);
if (n_args > 3) {
hints.ai_socktype = MP_OBJ_SMALL_INT_VALUE(args[3]);
}
}
struct addrinfo *addr_list;
int res = getaddrinfo(host, serv, &hints, &addr_list);
if (res != 0) {
// CPython: socket.gaierror
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "[addrinfo error %d]", res));
}
assert(addr_list);
mp_obj_t list = mp_obj_new_list(0, NULL);
for (struct addrinfo *addr = addr_list; addr; addr = addr->ai_next) {
mp_obj_tuple_t *t = mp_obj_new_tuple(5, NULL);
t->items[0] = MP_OBJ_NEW_SMALL_INT(addr->ai_family);
t->items[1] = MP_OBJ_NEW_SMALL_INT(addr->ai_socktype);
t->items[2] = MP_OBJ_NEW_SMALL_INT(addr->ai_protocol);
// "canonname will be a string representing the canonical name of the host
// if AI_CANONNAME is part of the flags argument; else canonname will be empty." ??
if (addr->ai_canonname) {
t->items[3] = MP_OBJ_NEW_QSTR(qstr_from_str(addr->ai_canonname));
} else {
t->items[3] = mp_const_none;
}
t->items[4] = mp_obj_new_bytearray(addr->ai_addrlen, addr->ai_addr);
mp_obj_list_append(list, t);
}
freeaddrinfo(addr_list);
return list;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_socket_getaddrinfo_obj, 2, 6, mod_socket_getaddrinfo);
STATIC mp_obj_t mod_socket_sockaddr(mp_obj_t sockaddr_in) {
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(sockaddr_in, &bufinfo, MP_BUFFER_READ);
switch (((struct sockaddr*)bufinfo.buf)->sa_family) {
case AF_INET: {
struct sockaddr_in *sa = (struct sockaddr_in*)bufinfo.buf;
mp_obj_tuple_t *t = mp_obj_new_tuple(3, NULL);
t->items[0] = MP_OBJ_NEW_SMALL_INT(AF_INET);
t->items[1] = mp_obj_new_bytes((byte*)&sa->sin_addr, sizeof(sa->sin_addr));
t->items[2] = MP_OBJ_NEW_SMALL_INT(ntohs(sa->sin_port));
return t;
}
default: {
struct sockaddr *sa = (struct sockaddr*)bufinfo.buf;
mp_obj_tuple_t *t = mp_obj_new_tuple(2, NULL);
t->items[0] = MP_OBJ_NEW_SMALL_INT(sa->sa_family);
t->items[1] = mp_obj_new_bytes((byte*)sa->sa_data, bufinfo.len - offsetof(struct sockaddr, sa_data));
return t;
}
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_socket_sockaddr_obj, mod_socket_sockaddr);
STATIC const mp_map_elem_t mp_module_socket_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_usocket) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_socket), (mp_obj_t)&usocket_type },
{ MP_OBJ_NEW_QSTR(MP_QSTR_getaddrinfo), (mp_obj_t)&mod_socket_getaddrinfo_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_inet_pton), (mp_obj_t)&mod_socket_inet_pton_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_sockaddr), (mp_obj_t)&mod_socket_sockaddr_obj },
#if MICROPY_SOCKET_EXTRA
{ MP_OBJ_NEW_QSTR(MP_QSTR_htons), (mp_obj_t)&mod_socket_htons_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_gethostbyname), (mp_obj_t)&mod_socket_gethostbyname_obj },
#endif
#define C(name) { MP_OBJ_NEW_QSTR(MP_QSTR_ ## name), MP_OBJ_NEW_SMALL_INT(name) }
C(AF_UNIX),
C(AF_INET),
C(AF_INET6),
C(SOCK_STREAM),
C(SOCK_DGRAM),
C(SOCK_RAW),
C(MSG_DONTROUTE),
C(MSG_DONTWAIT),
C(SOL_SOCKET),
C(SO_BROADCAST),
C(SO_ERROR),
C(SO_KEEPALIVE),
C(SO_LINGER),
C(SO_REUSEADDR),
#undef C
};
STATIC MP_DEFINE_CONST_DICT(mp_module_socket_globals, mp_module_socket_globals_table);
const mp_obj_module_t mp_module_socket = {
.base = { &mp_type_module },
.name = MP_QSTR_usocket,
.globals = (mp_obj_dict_t*)&mp_module_socket_globals,
};
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